News, research and environment in Japan and overseas
New Japanese research, local support programmes and environmental news on used disposable diapers have been added. Browse the source announcements and dates, distinguishing initiatives at the planning, trial and implementation stages.
Coverage period:October 9, 2023〜October 27, 2026 ／ Updated:October 27, 2026
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Kochi University surveys urinary leakage and pelvic floor care among 1,000 women who have given birth
In an online survey of 1,000 women aged 20–49 who had given birth, 45.0% wanted instruction in pelvic floor muscle training, while 16.3% had received it. The findings indicate a gap between desired and received support. This was a non-random, cross-sectional survey, not an estimate for all women in Japan or a test of training effectiveness. It did not focus only on women immediately after childbirth. The paper was published on October 17; the university announced the findings on October 26.
Read at the sourceNagoya plans a disposable diaper purchase subsidy for older people receiving care at home from February 2027
Nagoya City outlined a programme to subsidise part of the cost of disposable diapers for older residents with substantial long-term care needs who live at home. Applications are scheduled to open on December 1, 2026, with the programme starting on February 1, 2027. Vouchers will be usable at registered retailers. The source is the city’s retailer registration notice, and the date shown is its update date. The subsidy has not yet started.
Read at the sourceUnicharm compares caregiver lower-back loading during different diaper-changing methods
Unicharm used motion measurement and musculoskeletal simulation to compare bed-based changes of tape-fastened adult diapers with toilet-based changes of pull-on adult diapers using a toileting support lift. For insert-pad-only changes, the cumulative loading index with the lift was 40 when bed-based changing was set to 100. This preliminary investigation used one pair of adults acting as caregiver and care recipient. Product types and settings also differed, so it does not establish a product-only effect or prevention of back pain. The conference was held on September 5–6; the report was published on October 16.
Read at the sourceMiyashiro advises residents to prevent bags tearing when disposing of diapers and incontinence pads
Miyashiro Town advised residents to divide wet, heavy disposable diapers and incontinence pads into smaller loads to prevent waste bags tearing. Its guidance allows clear or colourless translucent bags as well as designated bags, and explains removing faecal matter, folding the soiled side inward and tying the bag closed. These are local disposal rules for Miyashiro, not nationwide instructions or the launch of a new recycling scheme.
Read at the sourceTokyu Construction opens a trial facility in Tsuno to turn diaper-derived sludge into fertiliser
Tokyu Construction announced that it had built a pilot fertiliser production facility in Tsuno, Miyazaki Prefecture, in August 2026 and begun trial operation. The process uses housefly larvae to treat pig manure and dewatered sludge left after pulp, superabsorbent polymer and plastic have been separated from used disposable diapers. The project is working towards fertiliser registration and commercialisation during fiscal 2026; the announcement does not indicate that commercialisation is complete.
Read at the sourceToilet rolls containing recycled diaper pulp become an Oki Town hometown-tax return gift
Love Forest Roll toilet paper, containing at least 10% pulp recovered from used disposable diapers, was selected as a hometown-tax donation return gift by Oki Town, Fukuoka Prefecture. Total Care System announced the selection on October 1. This is an example of expanding use of a product made with recovered resources, not an announcement that the product itself was first launched in October.
Read at the sourceABENA introduces San Special Fecal pads for fecal incontinence
ABENA introduced differently shaped San Special Fecal pads for fecal incontinence. The new range is presented as supporting the selection of suitable products for fecal incontinence. F1 has been sold since August 2026, while F3 is scheduled for launch in October of the same year. This announcement does not indicate a launch in Japan.
Read at the sourceAbsorbent product use and quality of life analyzed in 3,120 older people in Japan
The analysis included 3,120 community-dwelling people aged 75 or older in Japan. Use of absorbent products was associated with the perceived impact on quality of life independently of incontinence frequency. As this was a cross-sectional study, it cannot show that product use reduced quality of life. The participants were people aged 75 or older living in the community. The findings do not establish one approach to product use for everyone.
Read at the sourceKama and neighboring municipalities survey residents on separating and recycling used disposable diapers
Iizuka City, Kama City, Keisen Town and the Fukuoka Central Regional Environmental Facilities Association announced a survey of 6,500 randomly selected residents to inform waste-reduction measures and plans for separating and recycling used disposable diapers. Responses were due by October 23, 2026; the survey is now closed. This was a public opinion survey, not an announcement that separate diaper collection had begun throughout the area. The date shown is the original Kama City announcement date. The source link now opens Keisen Town’s official notice of the same joint survey.
Read at the sourceNationwide Japanese survey analyzed for links between men’s incontinence product use and quality of life
The paper analyzed a nationwide survey conducted in Japan in 2023, examining the association between men’s use of incontinence products and quality of life. It does not establish a causal relationship in which product use reduced quality of life. The survey took place in 2023, while the paper was published in 2026. It did not directly compare the effects or use of individual products.
Read at the sourceCare for incontinence-associated dermatitis compared in 40 care-facility residents
Forty care-facility residents with mild incontinence-associated dermatitis were compared over 14 days. Both silicone barrier spray after cleansing and zinc oxide ointment were associated with improvement, with no significant difference between groups. This was a small trial. It covered mild dermatitis over 14 days, so it is not known whether the same results apply to larger populations or longer-term care.
Read at the sourceHyogo Prefecture announces discussion meeting on recycling used disposable diapers
Hyogo Prefecture announced a meeting to exchange views on building a collection and recycling model for used disposable diapers. This does not announce the start of separate collection throughout the prefecture. The announcement concerns consideration of collection and recycling arrangements, and does not immediately change how households or facilities should separate diapers.
Read at the sourceReview combines 28 studies of incontinence-associated dermatitis, with caution needed when interpreting prevalence
The review combined 28 studies involving 270,719 adults. Incontinence-associated dermatitis prevalence was 14.2% in the eight studies with lower risk of bias. Differences between studies were very large, so the figure cannot be used as a prevalence estimate for Japan as a whole. The findings combine adult studies from multiple countries, with substantial differences between facilities and survey methods. The figure does not indicate the incidence at a particular facility.
Read at the sourceUCL proposes measures to reduce waste from absorbent hygiene products, including incontinence products
Researchers at UCL and other institutions set out research priorities combining reuse, recycling and materials development to reduce waste from absorbent hygiene products, including disposable diapers and incontinence products. The announcement does not claim that existing technologies alone can process large volumes of used products.
Read at the sourceTwo reusable absorbent underwear designs evaluated by 204 women with light urinary leakage
Two hundred and four women with light urinary leakage tried washable underwear at home: a design with an integrated absorbent layer and a design used with a replaceable pad. Both were generally rated positively for confidence against leakage and comfort, with a slightly higher overall rating for the integrated design. The study was conducted by manufacturer employees and does not demonstrate effectiveness for severe incontinence.
Read at the sourceOntex publishes its own survey on incontinence and skin irritation
Ontex published its own survey reporting that approximately half of people with incontinence had experienced dermatitis or irritation. It highlighted keeping skin dry and protected, as well as absorbent performance. The manufacturer survey involved more than 2,500 people in 2024–2025. The reported percentage cannot be treated as the prevalence of dermatitis in the general population.
Read at the sourceAustralian guidance explains use of continence product payments alongside home support for older people
A continence care organization announced that certain older people in Australia can continue to receive CAPS payments toward continence products while using home support services. This is not a change to Japan’s system. The organization announced the change on June 30, 2026, with application from July 1. Eligibility is determined under the Australian system, which differs from Japan’s.
Read at the sourceWayo Women’s University introduces continence care that protects the dignity of people with dementia
A symposium on continence care that protects the dignity of people with dementia was held on June 6 at the Japanese Society for Dementia Care conference. Topics included assistive products, local collaboration across professions and family caregiving burdens. University researchers introduced a collection of cases concerning toileting difficulties among older people with dementia living in the community. It offers a starting point for considering specific ways to provide support.
Read at the sourceAustralian continence product payment increased to AUD 739.40 a year
An amendment was registered increasing the annual payment under Australia’s Continence Aids Payment Scheme (CAPS) from AUD 717.10 to AUD 739.40. The new amount applies from July 1, 2026. This is an indexation adjustment to a scheme that helps eligible people meet part of the cost of continence products, rather than a comprehensive change to eligibility requirements.
Read at the sourceBladder diaries from 17 Japanese facilities analyzed for patterns in nocturia
The study analyzed bladder diaries from 875 people reporting nocturia at 17 facilities in Japan. Nocturnal polyuria was more common with increasing age, particularly among those aged 80 or older. Its cause cannot be determined from the number of diapers used at night alone. The records were collected in 2018–2022, and the paper was published in 2026. Assessment of nocturnal polyuria requires individual bladder records and clinical evaluation.
Read at the sourceUnicharm reports a cumulative 7.04 million used diapers collected and recycled
Unicharm reported that cumulative collection and recycling of used disposable diapers had reached 7.04 million by March 2026. The company states that its process can reduce CO₂ emissions by approximately 50% compared with incineration. This reduction is based on the company’s specified comparison conditions; it is not a reduction in total emissions nationwide.
Read at the sourceEnvironment ministry selects eight projects supporting recycling of used disposable diapers
Japan’s Ministry of the Environment announced the projects selected for a support program for municipalities working on recycling used disposable diapers. Eight projects receive support for activities such as surveys, planning and resident awareness. The announcement gives the selection results for support of municipal surveys, planning and public information; it does not state that collection has already begun in each area.
Read at the sourceHakodate hospital reports on a bladder care team involving physicians and nurses
Hakodate Neurosurgical Hospital reported on its bladder care team’s activities. The team used bladder diaries and residual urine measurements to advise on measures such as assistance to use the toilet. Urinary catheter days and indicators of associated urinary tract infection decreased during the reporting period. This is an activity report from a single facility, so the improvement cannot be attributed to the team alone.
Read at the sourceUnicharm expands sales regions for children’s pull-on diapers containing recycled materials
Unicharm announced plans to expand sales of children’s pull-on diapers containing some recycled materials beyond Kyushu, progressively reaching a total of 42 stores, including AEON stores in the Chugoku, Kansai, Chubu and Kanto regions. This is not an expansion of adult diaper sales. The scope of recycled material use must be checked in the original product announcement.
Read at the sourceSmall study examines reasons for changing pads by measuring used products
Used pads from 11 women aged 65–95 living at home were measured, and the women were interviewed. At the time of changing, the median absorbed volume was 9.5% of nominal capacity. Reasons for changing included comfort, going out and daily routines, as well as wetness. This was a small exploratory study. It suggests that pads are often changed before reaching nominal capacity, but the findings are limited to 11 women. They do not support determining change times from a number alone.
Read at the sourceEssity reports selected improvements to North American TENA ranges in quarterly results
In its first-quarter 2026 report, Essity stated that it had improved selected TENA ranges in North America. The announcement does not specify individual product names, specifications or a breakdown of sales regions. It concerns product updates in North America and does not confirm that the same specification changes occurred in Japan.
Read at the sourceOsaki offers free dedicated diaper waste bags to households with children under three
Osaki Town announced free distribution of dedicated bags used to separate used disposable diapers to households with children under three. The program makes participation in the town’s existing separate collection and recycling system easier; it does not announce completion of a new recycling technology.
Read at the sourceReview examines 18 studies of non-drug bladder care for older people with cognitive impairment
The review examined 18 studies of non-drug care for lower urinary tract symptoms in older people with cognitive impairment. Approaches combined interventions addressing toileting habits, caregiver-led support and sensors according to the person’s ability to understand. The literature search covered publications through July 2024. Although it addresses multiple forms of support, including caregiver involvement and sensors, it does not recommend every approach uniformly.
Read at the sourceEnvironment ministry revises guidelines on recycling used disposable diapers
Japan’s Ministry of the Environment revised its guidelines on recycling used disposable diapers. For municipalities, the guidelines cover future waste volume projections, estimates of greenhouse gas reductions and costs, and steps to consider when introducing a system. They are a resource for municipalities considering collection and recycling, rather than a notice changing household diaper disposal methods uniformly across Japan.
Read at the sourceProfessional society publishes physical therapy guidelines for urinary incontinence in women
The Japanese Society of Women’s and Men’s Health Physical Therapy published physical therapy guidelines for urinary incontinence in women. Covering stress, urgency and mixed urinary incontinence in adult women, they give a conditional recommendation for pelvic floor muscle training. Older women are included, but the guidance is intended to be used in consultation with professionals according to symptoms and personal preferences.
Read at the sourceHealth ministry presents a collaborative continence care initiative in Komatsu, Ishikawa
Japan’s Ministry of Health, Labour and Welfare presented a continence care collaboration in Komatsu City, Ishikawa Prefecture. Physicians, nurses, a university and the city cooperate to place trained “continence partners” in community comprehensive support centers, hospitals and care facilities. Classes for residents began in fiscal 2025 to expand access to advice and self-care information.
Read at the sourceHARTMANN reports 2025 incontinence business results and introduction of absorbent underwear
In its full-year 2025 results, Germany’s HARTMANN reported incontinence product sales of EUR 785.8 million and organic growth of 2.8%. It stated that improvements to pull-on adult diapers and the introduction of absorbent underwear contributed to the business. This is a sales performance announcement, not a study testing effects on users.
Read at the sourceOntex and Henkel to jointly roll out a wetness detection service for European care facilities
Ontex and Henkel announced a joint rollout of Orizon to European care facilities. The service detects wetness inside absorbent products and indicates change times through an app. It works by detecting moisture in an absorbent product and notifying users through the app when a change is due. Reductions in staffing demands and waste are effects anticipated by the companies.
Read at the sourceTokamachi ends trial of converting used disposable diapers into fuel
Tokamachi City concluded that continuing its trial of converting used disposable diapers into fuel would be difficult. Although the trial succeeded in producing pellets consistently, achieving both complete combustion in the boiler and durability remained a challenge. A report was published in February 2026. This is not a conclusion about all technologies for recycling disposable diapers.
Read at the sourceNorth London waste authority discusses waste measures for absorbent hygiene products
The North London waste authority described discussions about waste from absorbent hygiene products, including disposable diapers and adult incontinence products. Parliamentarians, researchers and businesses considered collection, reuse and possible policy approaches. The article describes a regional waste challenge; it does not announce a decision to introduce a specific separate collection system.
Read at the sourceUniversity of Toyama and partners research a sensor for measuring diaper absorption
Researchers at the University of Toyama and other institutions studied an absorbed-volume sensor combining electrodes outside a disposable diaper with an accelerometer that detects posture. Mean error fell from 30% to 10% in simulations and from 35% to 23% in a test involving one healthy adult man. The findings do not demonstrate effectiveness in older people receiving care; the work remains at the basic research stage.
Read at the sourceOntex announces Sensitive incontinence products for European care facilities
Belgium-based Ontex announced its Sensitive range of adult incontinence products, marketed with an emphasis on skin care. Three types of absorbent product are scheduled for progressive introduction to European care facilities, together with staff training on incontinence-associated dermatitis. The announcement does not mean that all products had already been launched.
Read at the sourceReview of 14 studies identifies information, choice and dignity in the continence care older people want
The review examined 14 studies addressing the perspectives of older people living in care facilities or receiving support at home. Priorities included access to appropriate products and toilets, help without having to wait, personal choice and dignity. It primarily synthesizes existing studies from English-speaking countries, rather than surveying conditions in Japanese facilities.
Read at the sourceIkoma seeks business partners to consider a local model for recycling used disposable diapers
Ikoma City sought companies willing to jointly consider and trial a local model connecting the collection of used disposable diapers, recycling and use of the recovered resources. The announcement concerns recruitment of business partners; it does not indicate that a collection system or facility operation has been finalized.
Read at the sourceMaterials and absorption behavior compared in 15 urinary leakage pads and menstrual products
UK researchers compared seven urinary leakage pads and eight menstrual products in the laboratory. They reported that surface materials and product construction, as well as the amount of absorbent material, affect liquid spread and drying. This was a product comparison under test conditions; it did not directly measure leakage or skin effects during everyday use.
Read at the sourceOntex launches multipurpose liners that also address light urinary leakage in Europe
Ontex announced the launch of liners designed to handle menstruation, light urinary leakage and vaginal discharge in one product. At the time of the announcement, they were on shelves in German retail stores, with progressive expansion to other European regions planned. The manufacturer described them as approved medical devices; the announcement does not indicate sales or approval in Japan.
Read at the sourceUniversity of Kitakyushu evaluates environmental impacts of diapers using a hypothetical plant-derived absorbent material
Researchers at the University of Kitakyushu used life cycle assessment to examine environmental impacts, including recycling, under a scenario in which diaper absorbent material was replaced by a plant-derived material. The study uses assumptions; it is not a measurement of actual replacement of commercially available diapers. The conference presentation took place in September 2025, and publication on J-STAGE followed in December.
Read at the sourceMedline to introduce an incontinence product selection tool at 33 US facilities
US-based Medline announced a supply agreement with TLC Management, which supports 33 locations including care facilities. The facilities will introduce the online FitRight Navigator tool to help select incontinence products and check sizes for individual residents. The agreement starts in October 2025; the announcement does not report measured improvements in leakage or costs.
Read at the sourceTwo external urine collection devices compared in 165 women with nighttime urinary incontinence
The study compared 165 women who needed nighttime urinary incontinence management over four weeks. PureWick, a suction-based external urine collection device, met non-inferiority criteria against the comparator for the primary measures of urine collection rate and skin irritation. The manufacturer funded the trial. It was not a direct comparison with disposable diapers or pads.
Read at the sourceUnicharm and Fuji Clean to develop a dry cleaning method that reduces water use
Unicharm and Fuji Clean announced the start of development of a “dry cleaning method” to reduce water used in recycling used disposable diapers. Reducing water use to approximately one-fiftieth of the conventional amount is a development target, rather than a result already achieved in commercial equipment. The technology is presented as requiring further verification.
Read at the sourceAustralia publishes reporting guidance on continence care in residential aged care
The Australian government published a quick reference guide to quality indicators for continence care among residents of aged care facilities. It helps registered residential aged care providers understand their obligations to collect and report continence care data. This is a facility quality management document, rather than guidance for individuals on choosing products or obtaining payments.
Read at the sourceAichi announces a hospital trial of recycling used disposable diapers
Aichi Prefecture announced a trial starting November 7 at Kariya Memorial Hospital. Used disposable diapers will be shredded and dried using frictional heat, and deodorizing effects will also be assessed. The plan is to experimentally recycle part of the hospital’s approximately 100 kg of daily diaper waste into waste bins and garbage bags. The trial will evaluate equipment durability and product quality.
Read at the sourceCost-effectiveness of sensor-equipped incontinence products analyzed in a Dutch facility trial
A trial of sensor-equipped incontinence products for facility residents with profound intellectual and multiple disabilities was reanalyzed from an economic perspective. Estimated societal costs over 12 weeks were higher than with usual care, and improvements in leakage or quality of life were not demonstrated. This is an economic evaluation distinct from the clinical findings of the same trial.
Read at the sourceKao begins a trial of carbonizing used disposable diapers in Kamikatsu, Tokushima
Kao announced a trial in Kamikatsu Town, Tokushima Prefecture, converting used disposable diapers into a semi-carbonized material for use as local fuel. The initiative will test the processing of used diapers and use of local resources. CO₂ reduction is an intended effect, not a confirmed measured reduction.
Read at the sourceUK NHS describes a trial of individualized continence care in care homes
NHS Supply Chain described a procurement trial focused on individualized continence care and product selection for care-home residents. The article discusses resident comfort, staff tasks and waste reduction. It is a case from a particular area and provider, rather than research establishing effects throughout the UK.
Read at the sourceEnvironment ministry begins considering revisions to diaper recycling guidelines
Japan’s Ministry of the Environment announced the first meeting to consider revising guidelines on recycling and other uses of used disposable diapers. Planned discussions cover recycling trends, previous initiatives and issues for revision. The announcement marks the start of consideration, rather than publication of revised guidelines.
Read at the sourceKyushu University and partners begin cultivation experiments using used diapers for plant-growing materials
Kyushu University and partners began an experiment using used disposable diapers to cultivate Trichoderma fungi and investigating whether the resulting material could support plant growth. The work is at the stage of testing cultivation and plant applications. It does not announce confirmed effectiveness or safety as an agricultural material, or established commercial use.
Read at the sourceDepend continues US efforts to encourage discussion of prostate cancer and urinary leakage
Kimberly-Clark’s incontinence brand Depend announced that it would continue its US awareness activities in 2025 to make prostate cancer and urinary leakage easier to discuss. Former baseball players and others are involved in raising interest in early detection. This is not an announcement of a new product or a product’s therapeutic effect, and the activities are not directed at Japan.
Read at the sourceWetness detection sensors in care facilities compared for skin condition and care time
TENA devices that notify caregivers of wetness in incontinence products were compared with usual care among residents of 14 care facilities. Skin condition did not worsen, but the primary measure of care efficiency showed no significant difference. Although nighttime interruptions and product use improved, longer-term evaluation was considered necessary. Manufacturer representatives were among the authors.
Read at the sourceSensor-equipped incontinence products reduce changes in facilities but do not reduce leakage
The analysis involved 156 people with profound intellectual and multiple disabilities at six disability care facilities in the Netherlands. Sensor-equipped incontinence products reduced weekly changes, but improvements in leakage, quality of life or care time were not demonstrated. Some use was discontinued, highlighting the challenge of matching the technology to users and care settings.
Read at the sourceAustralian continence organization publishes findings from its 2025 national survey
An Australian continence organization published its 2025 survey examining the health and social effects of incontinence. Fifty-seven percent of respondents with incontinence reported hesitating to go out. The announcement is based on survey data held by the organization; the percentages cannot be applied to conditions in Japan.
Read at the sourceSix companies including Nippon Shokubai sign diaper recycling agreement with Chikuzen
Six companies including Nippon Shokubai announced an agreement with Chikuzen Town, Fukuoka Prefecture, to promote recycling of used disposable diapers. The agreement covers coordination with the town’s separate collection initiative and collection at facilities. It is distinct from the start of town-wide collection. The agreement itself should not be treated as the launch of recycled products.
Read at the sourceReview reassesses 15 trials of cleansers and skin protectants for preventing incontinence-associated dermatitis
The review examined 15 trials of cleansers and topical skin protectants for preventing incontinence-associated dermatitis in adults. These may offer advantages over cleansing with soap and water, but evidence for determining which products are better remains of low certainty. The findings do not support recommending a particular product to everyone.
Read at the sourceEnvironment ministry supports eight municipalities considering diaper recycling
Japan’s Ministry of the Environment selected eight projects for hands-on support to municipalities considering recycling used disposable diapers. It supports necessary surveys and resident awareness in Kasugai, Hamamatsu, Fukuroi, Ueda and other municipalities. The announcement does not mean that diaper collection or recycling has begun in every selected area.
Read at the sourceExperts review key points in preventing and caring for incontinence-associated dermatitis in older people
This review addresses incontinence-associated dermatitis in older people. To reduce skin contact with urine and stool, it outlines an approach combining assessment of the type of incontinence, suitable absorbent products, regular changes, gentle cleansing and skin protection. Assessment tailored to the individual’s condition is a prerequisite.
Read at the sourceOntex expands iD Discreet to European healthcare and care providers
Ontex announced the rollout of iD Discreet incontinence products to European healthcare and care providers. The range includes pull-on adult diapers and pads for light urinary leakage, supplied through channels such as pharmacies and care facilities. The announcement extends technology used for retail products into professional care distribution; availability in Japan is not confirmed.
Read at the sourceSurvey examines selection of fecal incontinence products among caregivers in China
The survey examined product use and difficulties among family members, care assistants and nurses supporting bedridden patients at three Chinese hospitals. Reliance on absorbent products was high, and awareness of alternatives was limited among families. The study concerns particular locations and facilities, rather than comparing product effectiveness.
Read at the sourceKochi University and partners receive national invention award for pulp recovery from used diapers
Kochi University announced that technology for extracting high-purity pulp from used disposable diapers, covered by a joint patent application with Unicharm, received a National Commendation for Invention. The award recognizes the technology; it does not indicate completion of Japan’s collection network or a record of mass production of every product using recycled pulp.
Read at the sourceShizuoka recruits municipalities for a joint trial of used diaper recycling
Shizuoka Prefecture sought municipalities to participate in a joint trial of recycling used disposable diapers. The plan is to investigate economic, environmental, social and technical issues, and applications have already closed. The material does not indicate that separate collection or sales of recycled products have begun in selected areas.
Read at the sourceOji Nepia and partners begin joint transport of adult diapers and packaging materials
Oji Nepia and partners began joint transport combining adult disposable diapers and packaging materials. The company expects this to reduce CO₂ emissions on the relevant route by approximately 50%. The reduction is an estimate for a particular logistics route, rather than a reduction across the product’s full life cycle from manufacture to disposal.
Read at the sourceAustralian continence organization explains selection of disposable and reusable products
An Australian continence organization described the cost and usability of disposable and washable incontinence products. It advises choosing products that fit the user’s symptoms and daily life and consulting a professional if needed. It also explains Australian subsidy arrangements; it is not guidance on programs available in Japan.
Read at the sourceUniversity of Toyama and partners research a non-contact sensor for diaper absorption
Researchers at the University of Toyama and other institutions reported a sensor that estimates absorbed volume from changes in capacitance without touching the diaper directly. It was tested with repeated simulated urination and different products, but the work mainly involved model experiments. Human testing was also limited to simulated conditions involving one person. This is not a technology already in practical use in care settings.
Read at the sourcePoise announces health information activities for women in rural areas of the US
Poise, a brand of light urinary leakage products, released a video sharing the voices of women in rural areas of the US who have limited access to menopause-related health information. It also mentions a research concept for obtaining health information from dried urine remaining in absorbent care pads, but does not announce the launch of a diagnostic service. The activity concerns the US, rather than a change to Japan’s system.
Read at the sourceUnicharm launches adult diapers containing some recycled pulp
Unicharm announced Lifree Stretch-Fit Thin Lightweight Tape-Fastened RefF adult diapers, using pulp recovered from used disposable diapers as part of the raw material. This does not mean that the entire product consists of recycled materials. It is presented as a specific example of an adult product using recycled raw materials.
Read at the sourceSix Japanese companies estimate CO₂ reductions from diaper recycling under specified conditions
Six companies including Nippon Shokubai calculated annual CO₂ savings of 2,813 tonnes compared with incineration, using annual processing of 5,000 tonnes under the Omuta method as a calculation condition. This is a conditional estimate based on life cycle assessment, rather than Japan’s actual annual reduction. It should be treated as the same findings announced by the University of Kitakyushu.
Read at the sourceChikuzen Town begins separate collection of used disposable diapers across the town in April 2025
Following a trial in 2024, Chikuzen Town began separate collection of used disposable diapers throughout the town in April 2025. Residents use dedicated bags and collection boxes, and the collected diapers are sent to a treatment facility in Omuta City. This is a collection scheme that has actually begun, distinguished here from calls for participants and future plans.
Read at the sourceExploring how bed movements could support nighttime continence care
A study involving six people tested a method for identifying movements such as turning over, sitting up and restlessness using an acceleration sensor connected to a mattress. It achieved a certain level of accuracy in classifying movements, but did not establish the ability to determine actual urination times or the need for diaper changes. Further validation is needed.
Read at the sourceAssociation between dermatitis and bacteria in women with urinary incontinence
Researchers at Fujita Health University examined the skin of 114 community-dwelling women with urinary incontinence. Bacteria that produce urease were detected more frequently in those with incontinence-associated dermatitis, and the culture medium also had a higher pH. This was a cross-sectional study; it has not established that the bacteria caused the dermatitis or that preventive measures are effective.
Read at the sourceSurvey of urinary incontinence care knowledge among care-facility staff
A questionnaire survey assessed knowledge and practice in urinary incontinence care among 171 nurses and nursing assistants at three care facilities in Serbia. It found gaps in some areas of basic understanding and in toileting plans and documentation. The findings may inform continuing education, but this was a regional cross-sectional study based on self-reporting.
Read at the sourcePilot separate collection of used absorbent hygiene products
A pilot study in eastern Spain separately collected absorbent hygiene products, including disposable diapers. The proportion of these products in mixed waste in the study area fell from 5% to 3%, while adult diapers accounted for 46–63% of the separately collected waste. This was a local trial; the figures do not represent national collection rates or recycling benefits.
Read at the sourceHow posture affects moisture-sensor readings in disposable diapers
A conference abstract examined how body position changes readings from a device that detects moisture inside a disposable diaper through capacitance. Tests under simulated conditions indicated a need for posture-dependent correction. This is an investigation of measurement technology, rather than confirmation that the device can accurately identify urination or the timing of changes in real-world use.
Read at the sourceOji Nepia uses electricity generated from fuel derived from used disposable diapers
Oji Nepia announced an initiative to use electricity generated from solid fuel derived from used disposable diapers in toilet-roll converting. This does not involve directly mixing diaper materials into the raw material for toilet rolls. It is presented separately as an example of recovering resources for use as fuel and electricity.
Read at the sourceMinistry of the Environment selects TOPPAN pilot for recycling plastics from used disposable diapers
The Ministry of the Environment selected a TOPPAN pilot project that reuses plastics separated and washed from used disposable diapers as materials. The project will test downstream processing technology for mixed plastics that had previously been converted into solid fuel. Selection as a pilot project does not mean that commercial recycling has been established.
Read at the sourceMedline announces wetness-detection system for incontinence products in care facilities
US company Medline announced FitRight CONNECT, which combines dedicated absorbent products with a sensor. The system notifies care staff of wetness and records urination and change times to support continence care in US care facilities. The manufacturer’s announcement describes how the system works; it does not provide evidence that leakage has fallen across facilities nationwide.
Read at the sourceNippon Paper Crecia and Kurita Water Industries announce joint development of diapers designed for easier recycling
Nippon Paper Crecia and Kurita Water Industries announced that they will jointly develop disposable diapers designed with post-use separation and treatment in mind to make recycling easier. The work is at the stage of examining materials and product specifications; the announcement does not indicate the launch of a finished product or a nationwide collection scheme. It is presented as an initiative to advance resource circulation through product design.
Read at the sourceMinistry of the Environment selects pilot for recycling superabsorbent polymer from disposable diapers
The Ministry of the Environment selected a pilot project to chemically recycle superabsorbent polymer (SAP) separated from used disposable diapers and return it to circulation as a diaper raw material. This is a technology demonstration targeting a material that remains difficult to reuse even after separation. The announcement does not indicate mass production of a product or the start of nationwide collection.
Read at the sourceTechnology for remotely monitoring wetness in absorbent products
A technical paper describes a system that uses sensors to detect wetness in absorbent products such as disposable diapers and prioritize changes. It discusses the potential to reduce unnecessary nighttime checks, but the abstract does not report results from a large clinical comparison. The authors are affiliated with the company developing the product.
Read at the sourceReview of conditions associated with incontinence-associated dermatitis
A systematic review examined 12 studies on factors involved in the development of incontinence-associated dermatitis. Stool frequency, reduced mobility, friction and shear were among the potential factors identified. The review highlights the importance of examining skin while considering multiple factors, but study conditions varied, and the findings do not provide a definitive prediction formula that can be used on its own.
Read at the sourceStandardizing prevention of incontinence-associated dermatitis on hospital wards
A study introduced a care protocol combining skin assessment, appropriate absorbent products, cleansing and protection on 18 wards in six Australian hospitals. Dermatitis prevalence at the survey points fell from 6.71% to 4.27%, but a statistically significant difference was not established. The study should be read as an example of how care can be implemented.
Read at the sourceAustralia increases annual continence-product subsidy to AUD 694.80
Amending legislation was registered to increase the annual payment under Australia’s Continence Aids Payment Scheme (CAPS) from AUD 676.50 to AUD 694.80. The new amount applies from July 1, 2024. This is an indexed adjustment to a scheme that helps eligible people with severe and permanent incontinence meet part of the cost of purchasing products.
Read at the sourceYamagata University signs cooperation agreement with Soma City and other partners on recycling used disposable diapers
Yamagata University signed a cooperation agreement with Soma City in Fukushima Prefecture and other partners to investigate the collection, drying, sterilization and conversion into fuel of used disposable diapers. The agreement outlines plans to assess environmental and cost implications. It does not mean that a full-scale fuel-conversion facility was operating or that the business had been shown to be financially viable at the time of the agreement.
Read at the sourceListening to concerns of older women with urinary incontinence
A qualitative study interviewed 15 community-dwelling older women with urinary incontinence and three family members, identifying concerns such as isolation and anxiety about social roles. It illustrates difficulties in daily life that product selection alone may not capture. As it is based on a small number of personal experiences, it does not estimate how frequently these concerns occur.
Read at the sourceSurvey of incontinence-associated dermatitis prevalence in residential care for older people
A single-point survey examined the skin condition of 191 residents at three residential care facilities for older people in Ireland. Incontinence-associated dermatitis was found in 11.5% of all residents and 13.3% of those with incontinence. The findings may inform skin observation and prevention in care facilities, but caution is needed when generalizing to the wider region.
Read at the sourceNHS announces plans to expand self-referral to continence services
The NHS announced plans to expand arrangements allowing patients to refer themselves to community services without going through a GP. Continence services and community nursing were among the examples given, with an estimated 180,000 additional people a year expected to benefit. Implementation is determined locally, so this does not represent an immediate, uniform nationwide scheme.
Read at the sourceNew JIS standard defines quality assessment for recycled pulp from used disposable diapers
The Ministry of Economy, Trade and Industry announced the establishment of JIS S 0261, which specifies quality requirements and test methods for recycled pulp recovered from used disposable diapers. The standard provides common methods for checking hygiene and safety. It does not establish a system in which all used disposable diapers in Japan are collected and reused.
Read at the sourceAssociation of diaper use with going out and mood among older adults
A large cross-sectional study of long-term care insurance applicants in Shanghai analyzed associations between diaper use, going out and mood among older adults with incontinence. Among those who were relatively independent, diaper use was associated with factors such as going out more frequently. These are observations in an applicant population, however, and do not show that diapers caused people to go out more.
Read at the sourceSurvey of association between urine and stool leakage and caregiver burden
A survey of family caregivers and care-facility staff in Komatsu City, Ishikawa Prefecture, compared the physical and psychological burden of continence care. At home, urine and stool leakage from absorbent products was frequently reported as a physical burden, and combined use of diapers and pads was also associated with burden. As this was a cross-sectional survey, it cannot establish that combined use itself caused the burden.
Read at the sourceInvestigating urease and incontinence-associated dermatitis
A basic research study used a skin model to examine how substances such as ammonia produced by the enzyme that breaks down urea affect the skin barrier. It may help explain the mechanisms of incontinence-associated dermatitis, but it is not a trial directly comparing the clinical effectiveness of products or cleansing methods.
Read at the sourceWhy continence care can be difficult to discuss in dementia care at home
A study interviewed 31 UK health and social care professionals about continence support for people with dementia living at home. Barriers included difficulty for people and their families in raising the subject, difficulties accessing specialist support, and lack of time. This was a qualitative study of professionals’ experiences, rather than a measurement of the effectiveness of an intervention.
Read at the sourceShibushi City sets out plans for citywide collection of used disposable diapers
In its policy statement for fiscal 2024, Shibushi City set out plans to begin citywide collection of used disposable diapers and promote recycling, building on results from model districts. The plans reflect aims to extend landfill life and reduce waste. This was a statement of policy; residents need to check the city’s separate guidance on how to put diapers out for collection.
Read at the sourceReview of nighttime continence care and its potential effects on sleep
A review summarizes diaper-changing practices in hospitals and care facilities and the potential effects of nighttime changes on sleep. It also presents examples of reducing change frequency and may inform care that balances skin protection with sleep. It does not report a new comparative trial, and the author is an employee of a diaper manufacturer. Published in 2023 and made available online in February 2024.
Read at the sourceSurvey of urinary incontinence and continence care in care facilities
A cross-sectional study examined 132 residents in five care facilities in Catalonia. Urinary incontinence was found in 76.5%, while 46.2% were receiving behavioral approaches such as adjusting voiding habits. The findings apply to the participating facilities and do not represent national proportions.
Read at the sourceNHS publishes guidance on perinatal pelvic health care
The NHS published implementation guidance for local services supporting pelvic health from pregnancy until at least 12 months after birth. It covers prevention, early identification and referral for treatment of urinary incontinence, fecal incontinence and pelvic organ prolapse. The announcement concerns the development of advice and clinical services, rather than changes to the provision of absorbent products.
Read at the sourceModel estimates cost-effectiveness of a product for assessing voiding patterns
A study modeled the introduction of a sensor-equipped product for assessing voiding patterns in Canadian care facilities, comparing costs and quality of life with usual care. It estimated cost reductions over an average resident stay of approximately 2.34 years, but did not confirm equivalent savings in actual facilities. The manufacturer funded the research.
Read at the sourceComparison of automated continence-care systems and skin condition
A study in a South Korean long-term care facility compared continence care using automated suction, washing and drying with conventional diaper care. Differences were observed in skin moisture and incontinence-associated dermatitis. This was a short-term, non-randomized comparison, and the findings do not establish that all facilities would achieve the same effects.
Read at the sourceEssity joins European research into reusable sensors integrated into incontinence products
Essity joined Sustronics, a research project involving organizations from 11 European countries. The project is exploring reusable sensors integrated into incontinence products to measure factors such as temperature and humidity and help monitor skin condition. This announcement concerns research and development; it does not indicate the launch of a finished product or established effectiveness in preventing incontinence-associated dermatitis.
Read at the sourceAustralia publishes application guide for continence-product subsidy
The Australian Government published an application guide and form for the Continence Aids Payment Scheme (CAPS), which supports people with severe and permanent incontinence. The documents cover eligibility, representative details, how to apply and sections to be completed by a health professional. They explain how to access the scheme, rather than announcing a change to payment amounts.
Read at the sourceOsaka University develops starch-derived biodegradable superabsorbent polymer
Osaka University announced that it had developed a biodegradable superabsorbent polymer made from starch. This is materials research with potential applications in absorbent products such as disposable diapers; it does not mean that the material is already used in current diaper products. It also does not demonstrate that an entire used product will break down as it is in the natural environment.
Read at the sourceNHS urges older people and carers to prevent urinary tract infections
The NHS and the UK Health Security Agency called on older people and carers to take steps to prevent urinary tract infections. Their advice also mentions maintaining hygiene for people with incontinence and checking and changing incontinence pads regularly. This is public health advice relevant to continence care, rather than information about a new diaper product.
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