Postpartum Belly and Diastasis Recti: What Is Normal, What Helps

If your belly still looks pregnant after delivery, that is expected. The NHS says that after delivery “your tummy will probably still be a lot bigger than before pregnancy,” partly because your muscles have stretched. For many women part of that stretch is diastasis recti, a separation of the two long stomach muscles, which often narrows by itself in the first two months but does not always close.

Why is my belly still big after delivery?

Two things are going on. First, your womb (uterus) has to shrink back to its usual size, a process called involution. An NHS maternity service says this takes up to six weeks. Breastfeeding helps, because it makes the womb contract, which is why you may feel period-like cramps, called after pains, while feeding. These usually settle by the third day.

Second, the muscles at the front of your tummy have stretched, and the NHS names that stretch as part of the reason your tummy stays bigger after delivery.

What is diastasis recti?

Cleveland Clinic describes diastasis recti as what happens when the rectus abdominis muscles, the “six-pack” muscles, separate during pregnancy from being stretched. The band of tissue between them, the linea alba, thins and pulls apart as the uterus grows. The NHS calls it common.

Cleveland Clinic puts it at 6 in 10 women after childbirth. A 2021 systematic review in the Brazilian Journal of Physical Therapy reports prevalence of 60% at six weeks and 32.5% at 12 months postpartum. Figures vary between studies, but the pattern is the same: very common early on, and less common with time.

Cleveland Clinic lists these as making it more likely: fewer than 12 months between pregnancies, being over 35, carrying twins or triplets, a large baby, a very petite build, and pushing during vaginal delivery.

What does diastasis recti look and feel like?

• A visible bulge or “pooch” just above or below the belly button
• A soft or jelly-like feeling around the belly button
• Coning or doming along the middle of the tummy when you tense your stomach muscles
• Difficulty lifting, walking or with everyday tasks
• Low back pain and poor posture

Those are the signs Cleveland Clinic lists. It also says the separation itself isn't painful, though its side effects can be.

How to check for diastasis recti at home

The NHS describes a simple self-check. Lie on your back with your knees bent and feet flat on the floor. Lift your shoulders slightly off the floor and look down at your tummy. With your fingertips, feel between the edges of the muscles, above and below your belly button, and see how many fingers fit in the gap.

A home check is a rough guide. A doctor or physiotherapist feels the tummy with their hands, and Cleveland Clinic says they may use ultrasound, a measuring tape or a tool called a caliper for a more accurate measurement. It defines a gap wider than 2 centimetres as diastasis recti, and advises contacting your provider if you have more than a two-finger gap or pain.

Does diastasis recti heal on its own?

Often it does. The NHS says the separation “will usually go back to normal by the time your baby is 8 weeks old.” But not always: the research figure of about a third of women still affected at 12 months shows it can last. Cleveland Clinic says how long healing takes depends on how wide the separation is and how consistent you are with strengthening exercises.

The NHS advice is clear: if the gap is still obvious 8 weeks after the birth, contact your GP, as you may be at risk of back problems. The GP can refer you to a physiotherapist, who will give you specific exercises.

Can diastasis recti be fixed with exercise?

The NHS says regular pelvic floor and deep stomach muscle exercises can help reduce the size of the separation, and Cleveland Clinic recommends working with a physical therapist who has experience with diastasis recti.

It is worth being honest about the research, though. The 2021 systematic review looked at seven randomised trials with 381 women and concluded: “There is currently very low-quality scientific evidence to recommend specific exercise programs in the treatment of DRA postpartum.” A 2025 review in Medicine found isotonic abdominal exercises, especially combined with electrical stimulation, looked like the best option, but said that because of “the very low certainty of the evidence, these results should be interpreted with caution.” In short, exercise is the standard first step, but nobody has proven which programme works best.

Should crunches and sit-ups wait?

The NHS says to try to avoid sit-ups, planks and high-impact exercise to start with. Cleveland Clinic's list of exercises to avoid with diastasis recti is longer: crunches or sit-ups, planks, push-ups, downward dog and boat pose, double leg lifts and scissors, and any movement that makes your tummy bulge. The evidence here is also limited: the 2021 review found very low-quality evidence, from a single trial at high risk of bias, that curl-up training narrowed the gap more than minimal intervention. Sources do not agree, so a physiotherapist who has examined you is the best person to say when harder core work fits your recovery.

Do belly belts, binders and wraps work?

Many mothers are told to tie the stomach or wear a belt after delivery. Cleveland Clinic's position is that wearing binders “can't heal diastasis recti and won't strengthen your core muscles,” though they “can be a helpful reminder to engage your core and use good posture.”

The research on binding for diastasis recti is thin. A small 2021 pilot trial of 32 first-time mothers found abdominal binding alone had a small positive effect on body image after six months, and the authors called for more research before firm conclusions.

How a C-section changes this

After a caesarean, a binder has a different job: comfort. A 2021 review of six randomised trials found women who wore an abdominal binder after a C-section reported lower pain and distress scores at 24 and 48 hours. A 2025 review of 13 trials found lower pain from 6 to 48 hours and no significant difference in complications. These studies measured the first two days, not long-term shape or muscle separation.

A caesarean also leaves a wound in your tummy that will form a scar. The NHS advises not carrying anything heavier than your baby at first, and says some activities may need 6 weeks or so before you return to them. Your own midwife or doctor can tell you when core work fits your recovery.

Is diastasis recti a hernia, and is surgery ever needed?

Diastasis recti is not a hernia. A clinical review on the NCBI Bookshelf notes “there is no fascial defect in diastasis recti.” Cleveland Clinic does list umbilical hernia as a possible complication of untreated diastasis recti, along with constipation, back pain, urinary incontinence, painful sex and pelvic or hip pain.

Surgery is not the first step. The same review says most sources recommend physiotherapy and lifestyle changes first, and that surgery may be recommended if there is also a hernia or the abdominal wall is not working properly. Options include stitching the muscles together (plication), sometimes with a tummy tuck. Risks include infection, bleeding into the tissue, wound problems and scarring.

When to call your midwife or doctor

• The gap between your stomach muscles is still obvious 8 weeks after birth (NHS)
• You can fit more than two fingers in the gap, or you have pain (Cleveland Clinic)
• A lump near your belly button that is painful, hard, does not move, is getting bigger or does not go away: see a GP (NHS)
• Call 999 or your local emergency number if you have very bad tummy pain that does not go away, you are being sick or cannot keep food down, a lump is more swollen with changed skin colour, or you cannot fart or poo (NHS)
• After pains that are getting worse or are very hard to control, which can be a sign of infection (NHS maternity service)
• After a C-section: your wound becomes more red, painful and swollen, leaks pus or foul-smelling fluid, or you have severe pain or heavy vaginal bleeding (NHS)

MatraBloom does not measure or treat diastasis recti. What it does is keep core work in step with your recovery: guided movement opens up week by week and by birth type, with abdominal work held back longer after a caesarean, and the daily check-in is a simple place to note changes worth raising at your next appointment.

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Core work that waits for the right week

MatraBloom's guided movement opens up by week and by birth type, holding abdominal work back longer after a caesarean, and its daily check-in gives you a place to notice changes worth raising with your provider.

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