Diastasis Recti After Pregnancy: How to Check for It and What Actually Helps

A few weeks after your baby is born, you look down and there is still a bump — but it is a different kind of bump. Softer. Sometimes there is a ridge or a little tunnel down the middle when you sit up, or your belly cones to a point when you get out of bed. That is usually diastasis recti, and almost nobody mentions it to you beforehand.

It is one of the most common things that happens to a body after pregnancy, and one of the most oversold. There is a large industry built on closing the gap in six weeks. Here is what the clinical sources and the published research actually say — including the part where the evidence is weaker than the marketing.

01What diastasis recti actually is

Your abdominal muscles are not one sheet. The rectus abdominis — the pair of muscles people call a six-pack — runs in two columns down the front of your belly, joined in the middle by a band of connective tissue called the linea alba. The Cleveland Clinic describes diastasis recti as "the separation of your rectus abdominis muscles," which happens when "your abdomen stretches during pregnancy and creates a gap in the abdominal muscles."

The muscles themselves do not tear. What changes is the tissue between them: during pregnancy "your linea alba thins and pulls apart," and after stretching for months it does not always spring back to its old tension. So the gap is really a stretched seam, not an injury — which matters, because the fix is about restoring tension, not re-attaching anything.

Clinically the gap gets measured as an inter-rectus distance — how far apart the two columns sit. The Cleveland Clinic's threshold is simple: "An abdominal gap wider than 2 centimeters is considered diastasis recti." A systematic review in Surgical Endoscopy uses a similar number, about 22 millimeters measured a few centimeters above the belly button with the muscles relaxed.

02How common it is — and how much of it goes away on its own

Common enough that it is closer to normal than not. The Cleveland Clinic says diastasis recti affects "6 in 10 women after childbirth," with 45% still having it at six months postpartum.

The most useful numbers come from a prospective study of 300 first-time mothers followed from pregnancy through a year after birth, published in the British Journal of Sports Medicine by Sperstad and colleagues. They checked the same women at four points:

• 33.1% had diastasis recti at 21 weeks pregnant
• 60.0% at six weeks postpartum
• 45.4% at six months postpartum
• 32.6% at twelve months postpartum

Read that curve the right way and it is genuinely reassuring. The peak is right after birth, and then it falls by nearly half over the first year without anyone being handed a specialty routine. The Surgical Endoscopy review puts the same point plainly: the separation "regresses spontaneously after childbirth in most women" — while also noting that at 12 months, about a third of women still have it.

So if you are six weeks out and panicking about your middle: statistically, you are at the worst point of the whole timeline. Our postpartum recovery timeline covers what else is still in motion at that stage.

03How to check for diastasis recti at home

This is the one self-check that is genuinely worth doing, mostly so you know what you are dealing with before your postpartum visit. Here is the method the Cleveland Clinic describes.

What you are feeling for is width and also springiness — whether the tissue has any tension to it when you lift. Your provider can confirm it properly; the Cleveland Clinic notes they may use "their hands and fingers to feel your abdominal area" or measure it with "ultrasound, measuring tape or a tool called a caliper."

04The signs, including the one everyone notices first

According to the Cleveland Clinic, the usual signs are:

• A visible bulge or "pooch" above or below the belly button
• "Softness or jelly-like feeling around your belly button"
• "Coning or doming when you contract your ab muscles" — the ridge that appears as you sit up
• Low back pain, or finding everyday lifting and carrying harder than it used to be

On pain, two sources are worth holding together. The Cleveland Clinic says "Diastasis recti isn't painful" in itself, though the knock-on effects can be uncomfortable. And the Sperstad study found "no difference in reported lumbopelvic pain" between the women who had diastasis recti and the women who did not. That is a helpful finding: if your back hurts at a year postpartum, the gap is not automatically the explanation, and it is worth getting the real cause looked at rather than assuming.

05What actually helps

The standard conservative approach is gentle, deliberate work on the deep abdominal muscles — not the ones you can see. The Cleveland Clinic's advice is to "perform gentle movements that tighten your abdominal muscles," and specifically to "work with a physical therapist who has experience with diastasis recti." That referral is the single highest-value thing on this page. A pelvic floor or postpartum physical therapist will watch you breathe, brace, and move, and correct the thing a video cannot see.

There is real trial evidence that structured exercise narrows the gap. A 2024 randomized controlled trial in PLoS One assigned 28 postpartum women to either a conventional abdominal exercise plan or a hypopressive one — 12 sessions over six weeks — and measured the gap by ultrasound. Both groups improved: the gap narrowed by an average of 3.06 mm at one measurement point and 2.88 mm at another, with no significant difference between the two approaches, and women who had given birth more than once benefited most. The authors' conclusion: "A reduction in IRD has been achieved with the implementation of both 6-week exercise programs."

Note the units, though. That is about three millimeters in six weeks, in a study of 28 people. It is a real effect, and it is not a before-and-after photo.

06The honest part: what exercise does and does not do

This is where most articles on diastasis recti quietly overpromise, so here is the uncomfortable half of the literature. The Surgical Endoscopy systematic review found that physical therapy plans "were unable to reduce IRD in a relaxed state," achieving "a limited reduction in IRD during muscle contraction" instead. Its flat statement is that complete resolution of the separation, measured with the muscles relaxed, following a course of physical therapy is not described in current literature. One study it reviewed reported that 87% of patients who had physical therapy alone were dissatisfied and went on to choose surgery.

That review is written from a surgeon's vantage point, and it sees the people for whom conservative care did not settle the matter — so it is not the whole picture either. But put the two bodies of evidence side by side and a sane expectation emerges: good core rehabilitation reliably improves how your abdominal wall works — how it tensions, how it holds under load, how it feels to lift your baby — and narrows the gap modestly. What it does not dependably do is return a relaxed belly to its pre-pregnancy measurement. If someone promises you that in eight weeks, they are ahead of the research.

Which is an argument for picking the right goal. Strength you can use on the floor with your baby, with a car seat, and up the stairs is a better target than a number measured lying down.

07What to skip for now

Some of the most popular abdominal exercises push the gap outward instead of drawing it together. The Cleveland Clinic lists these to avoid:

• Crunches and sit-ups — the classic mistake, and the one most people start with
• Planks and push-ups
• Downward dog and boat pose
• Anything that makes your belly bulge or cone outward as you do it. That doming is the useful signal: if it appears, the movement is too much for where your tissue is right now

08When to call your provider

The Cleveland Clinic's threshold is clear: "If you have more than a two-finger gap between your abdominals or are experiencing pain, contact your healthcare provider." Two more reasons to call sooner rather than later: a bulge that stays pushed out, or anything that feels like a distinct lump near your belly button, since the Clinic notes surgery is considered "if you have an umbilical hernia" — a separate problem that needs looking at.

Otherwise, the natural moment to raise it is the postpartum visit. Womenshealth.gov, from the U.S. Office on Women's Health, says "Your doctor will check your recovery at your postpartum visit, about six weeks after birth," and that this is the appointment to discuss resuming normal activities and a fitness plan. Until then, MedlinePlus keeps it simple: "Follow your doctor's instructions on how much activity, like climbing stairs or walking, you can do for the next few weeks." Put it on the list for that visit — ours is the postpartum checklist — because it is easy to forget once you are in the room with a baby on your lap.

On surgery: the Surgical Endoscopy review notes that repair is generally considered for "cosmetic or functional impairment," and that the separation itself "poses no risk of strangulation" — meaning it is not a condition that becomes an emergency if you leave it. There is no clock forcing a decision.

09There is no deadline on this

The thing worth carrying away is the least urgent sentence in any of these sources. The Cleveland Clinic says it outright: "It's never too late to repair your diastasis recti. With the proper exercises, you can fix your ab separation years after you've delivered your last baby."

So the first postpartum year does not have to include a core routine. If all you can manage right now is feeding a baby and sleeping in pieces, that is the correct use of this month. The gap will still be addressable when you have an hour and the inclination, and the odds are decent it will have narrowed on its own in the meantime.

And if you are reading this while still pregnant, trying to get ahead of what comes after: that is what we built this site for. Enter your due date and you will get a free week-by-week to-do list that front-loads the real preparation into the middle of pregnancy — including lining up the postpartum support worth having in place before you need it.

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Newborn Weeks is planning help, not medical advice — always follow your own doctor, midwife, or pediatrician.