Postpartum Underwear: What to Wear After Birth

Last updated October 23, 2026. Educational information, not medical advice: see our Medical Disclaimer.

Nobody talks much about underwear after birth, yet it is one of the things that makes the biggest difference to how comfortable you feel in the first weeks. Your body is bleeding, healing and changing shape, and the knickers you wore before pregnancy are rarely up to the job. This guide explains what to wear in the first days, the following weeks and the months after, including what changes after a caesarean.

Why postpartum underwear is different

After any birth you will have vaginal bleeding, called lochia, while the lining of the womb heals. According to Cleveland Clinic, the heaviest, bright red bleeding usually lasts a few days, then it becomes lighter and pinker, and lochia can continue for up to around six weeks. During that time you will be wearing large maternity pads, so your underwear needs to hold them securely.

Your tummy will also still be soft and rounded for a while, and you may have stitches, a C-section scar, swelling or sore areas. Good postpartum underwear is soft, breathable, roomy enough for pads, and sits where it does not press on anything that is healing.

What to look for

A high waist. High-rise underwear holds pads in place and, after a caesarean, sits above the scar instead of on it.
Soft, breathable fabric. Cotton or a cotton-rich gusset is gentle on sensitive skin. Breathable fabric matters because many women feel warm while recovering and breastfeeding.
A wide, smooth waistband. Thin elastic digs in and rolls down. A wide band spreads the pressure.
Enough room. Size up from your pre-pregnancy size if you are unsure. Underwear that is too tight presses on sore areas and makes pads bunch up.
Easy to wash, or cheap to replace. Leaks happen in the first weeks, so this is not the time for your best lingerie.

Week by week: what to wear

Stage	What usually works best	Why
First days (hospital and home)	Disposable mesh knickers or soft, high-waisted cotton pants, sized up	Holds large maternity pads, nothing to wash, gentle on stitches or a fresh scar
Weeks 1 to 6	Soft high-waisted cotton pants, plenty of pairs	Bleeding gets lighter but continues, so comfort and easy washing matter most
From around 4 to 6 weeks, once healed	Everyday high-waist underwear, and shapewear if you want gentle support	Bleeding has usually stopped or is very light, and many women want a smoother line under clothes
Months 2 to 6	Your usual underwear plus supportive pieces for days out	Your shape keeps changing, so measure again before buying new sizes

The first days

Disposable mesh knickers are stretchy, breathable and hold a thick pad well, and you simply throw them away. Many hospitals provide a few, but it is worth packing your own. The NHS suggests bringing five or six pairs of comfortable knickers to hospital, and notes that disposable ones can be helpful, plus two packs of maternity pads. Our hospital bag checklist has the full list.

Weeks one to six

As bleeding gets lighter, most women switch to soft, high-waisted cotton pants. Have plenty, around ten pairs, so you are not doing laundry every day. Choose dark colours if you are worried about stains. Change pads regularly and keep the area clean and dry, especially if you have stitches.

From around four to six weeks

Once bleeding has stopped or is very light and any stitches or scar have healed, you can move to everyday underwear again. This is also when many women start to like a little extra support around the tummy. Gentle postpartum shapewear, such as a high-waist brief with built-in support, can make your middle feel held and help clothes sit more smoothly. Our guide on how to choose postpartum shapewear explains sizing and fit.

After a caesarean

A C-section scar usually sits low, along the bikini line, which is exactly where many waistbands and leg elastics rest. In the first weeks, choose underwear with a waistband that sits well above the scar, around or above the belly button, and avoid anything with a seam or elastic across the incision. Keep the wound clean and dry, and wear loose, soft clothing over it. Once the scar has healed and your doctor or midwife agrees, gentle high-rise shapewear can be comfortable; read more in shapewear after a C-section.

Postpartum underwear vs belly wraps vs shapewear

These are three different things. Postpartum underwear holds pads and keeps you comfortable while you bleed. A belly wrap or binder is an adjustable compression band some women use in the first weeks, especially after surgery. Shapewear is supportive underwear for later, once you are healed. Our comparison of belly wraps, belly bands and shapewear explains when each one makes sense.

A simple shopping list

A pack of disposable mesh knickers for the first days, especially if you are having a planned caesarean.
Around ten pairs of soft, high-waisted cotton pants, one size up from your usual size.
Two packs of super-absorbent maternity pads for hospital, and more for home.
Two or three soft nursing or sleep bras if you plan to breastfeed, plus breast pads.
Later, once healed: one or two pieces of supportive high-waist underwear or shapewear for days out.

There is no need to buy everything in advance. Your size and shape will keep changing in the first months, so buy a few pieces at a time and add more once you know what feels good.

Care and hygiene in the first weeks

Change maternity pads every few hours, and always after using the toilet.
Wash your hands before and after changing a pad.
Rinse the area with warm water when you go to the toilet if you have stitches, then pat dry gently.
Avoid tampons and menstrual cups until your doctor or midwife says it is safe; Cleveland Clinic advises nothing in the vagina for around six weeks.
Wash stained underwear in cold water first, as hot water can set blood stains.

Small habits like these make the first weeks more comfortable and help you spot early if something is not healing as it should.

When to get advice

Underwear can show you a lot about how you are healing. Contact your doctor, midwife or health visitor if:

Bleeding gets heavier instead of lighter, or you soak through a pad every hour or two.
You pass large clots.
The discharge smells unpleasant, or you have a fever or feel unwell.
A scar or stitches become red, hot, swollen, painful or start to leak.

If you are bleeding very heavily or feel faint, get urgent medical help.

Frequently asked questions

How many pairs of postpartum underwear do I need?

Pack five or six pairs for hospital, as the NHS suggests, and have around ten at home for the first weeks so you are not washing every day.

Should I size up after birth?

Usually, yes. Your hips and tummy are often larger for a while, and you need room for maternity pads. Measure rather than guessing.

Are disposable postpartum underwear worth it?

Many women find them practical for the first few days of heavy bleeding. After that, soft cotton pants are more comfortable and cheaper.

When can I wear shapewear again?

Once bleeding has stopped or is very light, any stitches or scar have healed, and your doctor or midwife agrees. For many women that is around four to six weeks after birth, but it can be earlier or later.

Keep reading

This article is general information, not medical advice. Always follow the guidance of your doctor or midwife about your own recovery.

Sources

Sources cited in this article

Cleveland Clinic: Lochia (postpartum bleeding) (my.clevelandclinic.org)
NHS: Pack your bag for labour (nhs.uk)
NHS: Early days after the birth (nhs.uk)
NHS: Caesarean section recovery (nhs.uk)

Last checked October 23, 2026. Spot an outdated source? Tell us.

About the author: Jessica Bordo writes Daily Health Cycle out of personal interest in women’s health, not as a clinician. Each article summarizes what sources such as the NHS, Mayo Clinic, Cleveland Clinic and ACOG say, and links to them so you can check the claims yourself. Use these guides to prepare questions for your own clinician, not to replace their advice. Our editorial standards explain how we research and update articles.

This article is for general education and isn’t medical advice. See our full disclaimer and talk with a qualified clinician about your own care.