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How to Check for Diastasis Recti at Home (The Finger Test)

Learn the at-home finger test for diastasis recti step by step, what a normal vs concerning gap feels like, and when to see a pelvic floor physical therapist.

By The newborn.mom team5 min read

If your belly still looks pregnant months after birth, or you notice a ridge or doming pop up down the center of your stomach when you sit up, you may be dealing with diastasis recti. That is the medical name for a gap between the two bands of muscle that run down the front of your abdomen. It is extremely common in pregnancy, and the good news is you can do a simple, no-equipment self-check at home in about a minute. Here is exactly how to do the finger test, what the gap should feel like, and when it is worth bringing in a professional.

A quick reassurance before you start. Some separation is normal and expected. The muscles stretch to make room for your baby, and a degree of widening happens in nearly every pregnancy. Ranges for what is "typical" are wide, and a number on its own does not tell the whole story. This is a screening tool, not a diagnosis.

When to do the self-check

Timing changes what you find. Almost everyone has noticeable separation in the first days and weeks after delivery, and a lot of that narrows on its own as your tissues recover. Checking too early mostly confirms that you just had a baby.

Wait until you are at least 6 weeks postpartum for a reading that actually means something. The NHS notes that if the gap is still obvious around 8 weeks after birth, you should contact your provider, since a persistent separation can be linked to back problems.

If you had a cesarean birth, the same general timeline applies, but go gently around your incision and skip the test if pressing on your abdomen is still painful. When in doubt, ask your provider to check it at your postpartum visit instead.

How to do the finger test, step by step

You only need a flat surface and your own hand.

Step 1: Get into position

Lie on your back with your knees bent and your feet flat on the floor or bed. Relax your shoulders and let your stomach soften. This is your starting point.

Step 2: Find your midline

Place the fingers of one hand just above your belly button, pointing down toward your toes, with your palm facing you. Press your fingertips gently into your abdomen. You are feeling for the soft valley between the two firm ridges of muscle on either side.

Step 3: Lift your head

Tuck your chin slightly and lift only your head and the tops of your shoulders off the surface, like the very start of a crunch. As you lift, the muscle ridges contract and you can feel the gap between them more clearly. Keep pressing gently and wiggle your fingers side to side to feel the edges.

Step 4: Check three spots

The separation can vary along its length, so check in three places: a few inches above the belly button, right at the belly button, and a few inches below it. Note the widest point. Lower yourself back down between checks if that is more comfortable.

Step 5: Measure the gap

Count how many finger-widths fit snugly between the muscle edges at each spot. One finger, two fingers, three or more. Also notice the depth: do your fingers sink in easily, or does the tissue feel firm and springy when you bear down a little?

Reading your results: normal vs concerning

Two things matter here, and width is only one of them.

Width is what most people count. A gap of one to two finger-widths is common and frequently resolves on its own in the postpartum weeks. A separation wider than two finger-widths is the threshold many clinicians use to flag diastasis recti worth attention. Mayo Clinic describes diastasis recti as that separation of the abdominal muscles that can leave a bulge or pooch where the muscles split.

Depth and tension matter just as much. Press into the gap and feel how the tissue responds. If your fingers sink deep into a soft, hammock-like space, the connective tissue has less recoil and may need more rehab. If the tissue feels firm and bounces back against your fingers, your core is managing pressure well even if the gap is a bit wide. A functional, supportive core is the real goal, not a perfectly closed gap.

So a two-and-a-half-finger gap that feels firm and springy is often less of a concern than a two-finger gap that feels soft and deep. Use both readings together.

When to call your provider or see a pelvic PT

Do the self-check, then act on what you find.

Reach out to your provider or ask for a referral to a pelvic floor physical therapist if the gap is still obvious 8 weeks or more after birth, if you can fit more than two finger-widths, if the tissue feels very soft and deep, or if you have related symptoms like low back pain, pelvic pressure, leaking urine, or a feeling that your core "gives out" with everyday lifting.

A pelvic floor physical therapist can confirm the assessment, rule out a hernia, and build a progression of deep-core and breathing work that is safe for your stage. The American College of Obstetricians and Gynecologists recommends easing back into abdominal and core strengthening after pregnancy, and a specialist makes sure you load the tissue in the right order rather than aggravating it with the wrong moves.

Get medical attention sooner if you notice a firm, tender bulge in your midline that does not flatten when you relax, along with pain, nausea, or vomiting. Those can be signs of a hernia rather than simple separation, and they need a prompt look. Otherwise, diastasis recti is common, manageable, and for many people it improves steadily with the right gentle work and a little patience.

Frequently asked questions

How many fingers is normal for diastasis recti?
A gap of one to two finger-widths between the abdominal muscles is common and often resolves on its own in the weeks after birth. A separation of more than two finger-widths, or a gap that feels deep and soft when you press, is the cutoff most clinicians use to flag diastasis recti worth addressing. Width is only part of the picture. How well the tissue resists your fingers matters just as much, so use the finger count as a starting point, not a diagnosis.
When can I check myself for diastasis recti after birth?
Wait until at least 6 weeks postpartum for a useful reading. Almost everyone has some abdominal separation right after delivery, and a lot of it narrows on its own in those first weeks. Checking too early mostly tells you that you just gave birth. The NHS suggests that if the gap is still obvious around 8 weeks, you contact your provider.
Can diastasis recti close on its own?
Often, yes. Mild separation frequently improves in the first 8 weeks after birth as your tissues recover, and targeted deep-core and pelvic floor work can help further. Some gaps stay wider longer, and a few do not fully close without guided rehab. The goal is a functional, supportive core, not a perfectly closed gap, so progress is measured by strength and symptoms, not only by finger count.
What exercises should I avoid with diastasis recti?
Early on, skip moves that bulge or dome the midline, such as traditional crunches, sit-ups, full planks, and heavy twisting. These can load the connective tissue before it is ready. Focus instead on gentle breathing, pelvic floor activation, and deep transverse abdominis work, ideally with guidance from a pelvic floor physical therapist who can confirm which progressions are safe for you.
Is diastasis recti the same as a hernia?
No. Diastasis recti is a thinning and widening of the connective tissue between the two halves of the abdominal muscle, with no hole in the muscle wall. A hernia is an actual defect where tissue or organ pushes through. The two can occur together, so if you feel a firm, tender bulge that does not flatten when you relax, or you have pain, nausea, or a lump that will not push back in, contact your provider promptly.
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