Adult diapers come in three main types, chosen by how mobile your parent is. Pull-up pants suit parents who can still walk to the toilet themselves, tape-on (tab) diapers suit bedridden parents or anyone who needs someone else to change them, and absorbent inserts sit inside either type to reduce how many diapers you use. Size must be chosen from real waist and hip measurements, not guessed from body weight. The key to avoiding rashes is to change promptly when soiled, clean gently, pat dry and apply barrier cream every single time.
Many sons and daughters buy adult diapers for the first time standing in front of a convenience-store shelf, faced with so many types, sizes and absorbency levels that they have no idea what to choose. The result is leaks, loose fits, or Mum saying they feel hot and uncomfortable. Some families face a worse problem: a red rash in the groin that spreads quickly and hurts. This guide brings together how to choose, measure, change in bed on your own, care for the skin and budget, so your family can get it right from day one.
Quick answer
- Pull-up pants go on and off like underwear and suit parents who can still walk and sit down and stand up on their own
- Tape-on diapers open and close at the sides and can be changed lying down, so they suit bedridden parents
- Absorbent inserts sit inside the diaper; change just the insert when it is slightly wet to save money
- Choose size from measured hip or waist circumference against the chart on the pack; if between sizes, try both
- Change immediately after a bowel movement and check for wetness regularly; clean with water or a gentle cleanser, pat dry, then apply barrier cream
1. Three types of adult diaper and how they differ
Choosing the wrong type is the main reason for leaks, discomfort and difficult changes. Base your choice on how well your parent moves.
Pull-up pants
An elastic waistband all the way round, worn and removed like underwear. Parents who still use the toilet can pull them down and up themselves, which preserves their sense of independence. They suit occasional incontinence, outings and night-time. The drawback is that they are hard to change in bed; once your parent can no longer stand, you need to tear the sides or switch to tape-on diapers.
Tape-on diapers
Tabs on both sides open and close, so the diaper can be put on and changed while lying down by rolling your parent from side to side. They are the best choice for bedridden parents or anyone who needs help with every change. Refastenable tabs let you adjust the fit several times.
Absorbent inserts
Long pads without tabs, placed inside a tape-on or pull-up diaper. When slightly wet, change only the insert rather than the whole diaper, which saves a great deal. Choose inserts that fit the outer diaper, and do not stack several, because trapped moisture damages the skin and the leak guards stop working.
Besides diapers, bed pads laid on the mattress protect it and serve as an underlay during changes or bed baths, but they do not replace diapers.
2. Choosing the right size: measure, don't guess
A loose diaper leaks at the leg openings; a tight one leaves marks and traps moisture. Measuring is the most accurate method.
- With a tape measure, measure around the widest part of the hips and around the waist at the navel.
- Compare with the size chart on the pack; each brand uses different ranges.
- If the measurement falls between two sizes, buy small packs of both and try them.
- When fitted, the leg guards should sit snugly in the groin with no gaps, and one or two fingers should slide into the waistband.
If your parent's weight changes, for example losing weight after illness, measure again, because the old size may now be loose enough to leak without anyone realising why.
3. Absorbency: match it to the time of day
Packs usually show absorbency with drops or numbers. Matching the level to the time of day helps both skin and budget.
- Daytime, when changes are frequent: medium absorbency lets the skin breathe more
- Night-time, when you do not want to wake your parent often: high absorbency or an overnight model, or add an insert
- Outings or long journeys: high-absorbency pull-ups, with a spare set and a bag for used items
A good diaper has a quick-drying top layer, raised leak guards at the legs and a wetness indicator that changes colour, so caregivers know when to change without checking constantly.
4. How often to change, and how to tell it is time
Change immediately after a bowel movement, because stool irritates the skin far more than urine. For urine, check wetness regularly.
- Check every 2–3 hours in the daytime, or at each turning, by looking at the wetness indicator or feeling the outside
- Change when it is heavily wet or the indicator has almost fully changed colour; do not wait for a leak
- At night, if your parent is sleeping soundly and the diaper can still hold more, change it at the night-time turn instead of waking them repeatedly
- If your parent can still walk, take them to the toilet at set times, such as after waking, after meals and before bed. The diaper will be less wet, and they keep moving
5. Changing a bedridden parent's diaper in bed, even on your own
Roll your parent from side to side instead of lifting them. Prepare a fresh diaper, wet wipes or a warm damp cloth, a dry towel, barrier cream, gloves and a rubbish bag first.
- Tell your parent what you are doing, wash your hands, put on gloves, raise the bed to your waist height and raise the rail on the far side.
- With your parent on their back, open both tabs, fold the front of the diaper down between the legs and use the clean part to wipe away most of the stool.
- Roll your parent towards the rail and roll the old diaper in towards them, soiled side inwards.
- Clean the buttocks and groin. For women, always wipe front to back. Pat dry and apply a thin layer of barrier cream.
- Tuck the new diaper, folded lengthways, under your parent so half lies under the hips and the other half is rolled against their body.
- Roll your parent back over the old diaper to the other side, remove the old diaper and unfold the new one fully.
- Lay your parent on their back, bring the front up between the legs, set the leg guards snugly in the groin, fasten the lower tabs angled upwards and the upper tabs angled downwards, not too tight.
- Straighten clothes and smooth the sheet so there are no creases, remove gloves and wash your hands, then lower the bed back to its lowest position and put the bed rails back as they were.
If your parent is large or difficult to turn, have two people, for their safety and the caregiver's back.
6. Preventing adult diaper rash: five things to do every time
Diaper rash in adults comes from damp skin in prolonged contact with urine or stool. Older skin is thin and heals slowly, so prevention matters.
- Change quickly, especially after stool; never leave it until the next round.
- Clean gently with water, gentle wet wipes or an adult skin cleanser; avoid bar soap if you wash several times a day, as it dries the skin.
- Pat, don't rub, drying thoroughly with a soft cloth, including groin creases and under the scrotum.
- Apply a thin barrier cream as a moisture shield, such as one containing zinc oxide or dimethicone; there is no need to apply it so thickly that it cannot be cleaned off at the next change.
- Let the skin breathe by leaving it uncovered for a moment during changes when possible, and never layer several diapers.
Avoid talcum powder in the diaper area, because it clumps when wet and irritates the skin.
7. Which rashes need a doctor or nurse
Mild redness that improves within a few days of the care in section 6 can usually be managed at home. See a doctor or nurse if you notice:
- An intensely red rash with small red spots scattered around its edge, which may be a fungal infection
- Broken skin, raw areas, oozing or bleeding
- A rash that spreads, or redness that does not improve within 3 days despite correct care
- Fever, or your parent crying out in pain at every change
- A red area over the tailbone or bony points that does not fade when pressed, which may be the start of a pressure sore rather than diaper rash
8. Budgeting: work out how many you need each month
Diapers are an ongoing cost that many families underestimate. Calculate from your home's actual use:
- Diapers per day = daytime changes + night-time changes (many bedridden parents use about 4–6 a day, but it varies)
- Diapers per month = diapers per day × 30
- Monthly cost = diapers per month × price per piece of your chosen product + bed pads + wet wipes + barrier cream
To save money without harming the skin, use inserts during the day, match absorbency to the time of day, and buy large packs once you are sure of the size. Many families also do not know that older adults who are housebound or bedridden (an ADL score of 6 or below) or who cannot control urine or stool may receive free adult diapers or bed pads, up to 3 pieces a day, through the local health security fund. Contact the nearest sub-district health promoting hospital, local administrative office, municipality or village health volunteer; in Bangkok, contact a BMA public health centre. You can check eligibility on the NHSO hotline 1330.
Mistakes families often make
- Putting your parent in diapers while they can still walk to the toilet. This makes them stop getting up sooner. Try scheduled toilet trips first and use pull-ups as backup.
- Buying a bigger size to be safe. Loose diapers leak at the legs, meaning more sheet changes.
- Stacking several inserts to change less often, which traps moisture and distorts the leak guards.
- Using talcum powder or scrubbing hard, which irritates and scrapes the skin.
- Not looking at the skin at every change, so rashes or red areas spread for days before anyone notices.
- Not talking with your parent about how they feel. Wearing diapers deeply affects dignity. Use respectful words, close the door and let them take part in choices where possible.
When to bring in a professional team
If diapers need changing so often that the family gets no rest day or night, your parent is too heavy to turn alone, or rashes keep coming back, a caregiver who does this work every day protects both your parent's skin and your family's rest.
- Caregiver at home: diaper changes, cleaning, skin care and scheduled turning are part of the daily routine. A 12-hour shift is 1,800 baht per day (three-day minimum) or 30,000 baht per month; a live-in 24-hour shift is 2,500 baht per day or 36,000 baht per month. See elderly care at home.
- Start with a short period: daily hire with a three-day minimum, or weekly hire at 12,000 baht (12-hour shift) or 16,000 baht (24-hour live-in), suitable for families who want to see care in practice before committing long term. See also five signs it is time to hire a caregiver.
- Registered nurse if the skin has broken down into a wound or a urinary catheter needs care; individual procedures start at 1,200 baht each. See home nursing.
If your parent needs a hospital bed or foam mattress to make changes and turning easier, see the rental models on our medical equipment rental page, and read about whole-body hygiene in how to give a bed bath and wash hair in bed.
Frequently asked questions
What is the difference between pull-up and tape-on adult diapers?
Pull-ups go on and off like underwear and suit parents who can still walk and use the toilet. Tape-on diapers open at the sides and can be changed lying down, so they suit bedridden parents or anyone who needs help changing.
Which brand of adult diaper is best?
The best brand is the one whose size fits your parent's hips, whose absorbency matches the time of use, with a dry-feeling top layer and leg leak guards, and which does not irritate your parent's skin. Try small packs of several brands before buying large packs.
How many times a day should an adult diaper be changed?
Immediately after any bowel movement; for urine, check every 2–3 hours in the daytime and change when heavily wet. Many people use about 4–6 a day, depending on urine volume and absorbency.
What should I put on adult diaper rash?
Clean gently, pat dry and apply a thin barrier cream such as zinc oxide or dimethicone. If the rash is intensely red with scattered spots around the edge, the skin is broken, or it does not improve, see a doctor, as it may be a fungal infection needing specific treatment.
Is it harmful to wear adult diapers all day?
Not if they are changed on time and the skin is cared for properly. If your parent can still walk, however, scheduled toilet trips should come first, with diapers as backup, to preserve their mobility and confidence.
Can I hire someone to change a bedridden parent's diapers?
Yes. KIN HomeCare caregivers handle diaper changes, cleaning and turning as part of their daily routine, on 12-hour or 24-hour shifts from 1,800 baht per day (three-day minimum for daily hire). If you would like to try a short period first, weekly hire starts at 12,000 baht.
Talk to the KIN HomeCare team
If toileting care is leaving your family without rest, or you would like a caregiver who does this every day, tell the team about your parent's condition. We will suggest a suitable shift and share caregiver profiles before the start date.
- Elderly care at home, home nursing and equipment rental: 061-881-9399 (+66 61 881 9399)
- Home physiotherapy: 095-767-6307 (+66 95 767 6307)
- LINE @KINHOMECARE
- Free consultation; home care available nationwide
This information is general guidance for families and does not replace advice from your parent's doctor.
Prepared by the KIN HomeCare team · Prices as of September 2026; please confirm with our staff before booking.
