Diastasis Recti: The Gap Is Not the Point

Most women find out about this from the internet, usually while looking at a stomach that will not go flat and wondering what is wrong with them.

The answer is often nothing that needs fixing in the way they think, and quite a lot that responds to being trained properly.

What diastasis recti actually is

The two halves of your outermost abdominal muscle run vertically down the front of the abdomen, joined by a band of connective tissue called the linea alba.

During pregnancy that band stretches and softens to let the abdomen expand. It is supposed to. Diastasis recti is when it stays wider afterwards than it was before.

It happens to the substantial majority of women in late pregnancy. Most narrow considerably in the months after birth. Some do not, and that is where the worry usually starts.

The width is not the point

This is the thing that changes how women feel about it, so I will say it plainly.

Everyone measures the gap in finger widths, and the gap is much less important than the tension across it. A wider gap with good tension functions well. A narrow gap with no tension does not.

What you are looking for is whether the connective tissue can take load — whether it goes taut when you engage, or whether your fingers sink in and keep going.

Which means a woman with a two-finger gap and good tension is in better shape than one with a one-finger gap that is soft. Chasing the number alone misses the actual question.

How to check

Lie on your back, knees bent, feet flat. Place your fingers just above your navel, pointing down toward your feet.

Lift your head and shoulders slightly, as if starting a small curl. Feel for the edges of the muscle either side, and note two things: how many fingers fit between them, and — more importantly — how deep your fingers go before meeting resistance.

Repeat above and below the navel, since it can differ along the length.

Do not panic at whatever you find. This is information, not a verdict, and it responds to training.

What makes it worse

Crunches and sit-ups. The classic mistake. They pull the two halves apart under load and push pressure forward against the very tissue you are trying to restore.

Holding your breath to brace. Pressurises the abdomen outward and downward with nowhere to go.

Any movement that domes. If your stomach forms a visible ridge down the middle during an exercise, that movement is currently too much. Not forever — today.

Doing nothing. Tissue responds to graded load. Avoidance is not neutral.

What actually helps

Breathe laterally. Into the sides and back of the ribs rather than pushing the belly forward. This is the foundation, and it is the same system I describe in What "Engage Your Core" Actually Means.

Train the deep layer, not the surface. The transverse abdominis wraps around like a corset. It creates tension across the midline, which is exactly what you want.

Exhale on effort. Breathe out as you lift, rise or exert. It engages the deep system automatically.

Include the pelvic floor. It is the base of the same pressure system, and it is usually part of the picture after childbirth. More in The Pelvic Floor: Beyond Kegels.

Progress gradually. Watch for doming and stay just below it. As tension improves, more becomes available.

Does it ever close completely?

Sometimes. Often it narrows substantially without returning to exactly what it was, and function is restored regardless.

That is worth sitting with, because a great many women are chasing a closed gap when what they actually want is a middle that works — no doming, no back pain, able to lift a child or a suitcase without feeling like something gives.

That is achievable for the large majority, and it is a better target.

Surgical repair exists and is occasionally the right answer, generally where there is significant hernia or where conservative work has genuinely been done and has not been enough. It is not the first step.

Where Pilates fits

This is close to what the method was made for. Deep abdominal work, breath coordination, supported positions, and spring resistance that can be dialled to whatever the tissue can currently tolerate.

It also progresses in small increments, which matters here more than almost anywhere else, because the injuries I see come from women who felt better and jumped three stages.

If you are postpartum by months or by fifteen years — and plenty of women arrive fifteen years later — start with a conversation. It is worth having someone watch what your midline does under load rather than guessing from a mirror.