Diastasis Recti: How to Check Yourself & 5 Safe Exercises

You look in the mirror four months after delivery and your belly still pooches out. People are starting to ask if you are pregnant again. You hold your breath, suck in, and the lower belly still domes forward.

This is not a willpower problem. It is not a weight problem. It is most likely a muscle problem with a clinical name: diastasis recti.

Diastasis recti (DR) is the separation of the two halves of your rectus abdominis (the “six-pack” muscle) along the connective tissue that runs down the centre of your belly. Pregnancy stretches this connective tissue (the linea alba) to make room for the baby. After delivery, it does not always snap back the way the rest of your body does.

Here is the part most women are never told: this is extremely common, it is fixable for most women, and the standard “tighten your tummy with crunches” advice is exactly what makes it worse.

Let’s go through how to check yourself, what helps, and what to avoid.

How Common Is Diastasis Recti, Really?

If you are reading this and you have had a baby, the odds are high.

• Late pregnancy: essentially 100% of women develop some separation by the third trimester (Mota et al., 2015, Manual Therapy). It is a normal adaptation, not a complication.
• 6 weeks postpartum: about 60% of women still have measurable diastasis recti.
• 6 months postpartum: about 33% still have it (Sperstad et al., 2016, British Journal of Sports Medicine).
• 12 months postpartum and beyond: roughly 1 in 3 women still have a clinically significant gap if they have not done targeted core rehab.

So if your friend’s belly looks “back to normal” at 4 months and yours does not, it is not because you ate wrong or rested too much. It usually means the connective tissue needs more time and the right kind of work to recover.

DR is more likely if you had a multiple pregnancy (twins or more), a large baby, polyhydramnios (excess amniotic fluid), more than one pregnancy close together, or if you did heavy core work like sit-ups during pregnancy.

How to Check Yourself in 60 Seconds

You do not need a doctor’s visit to do an initial self-check. You need a flat surface, two fingers, and a minute.

Step 1. Lie on your back on a firm surface (the floor or a yoga mat, not a soft bed). Bend your knees so your feet are flat. Relax your belly fully.

Step 2. Place two fingers (index and middle) horizontally just above your belly button, pressing gently into your abdomen.

Step 3. Lift your head and shoulders very slightly off the floor, just enough to feel your abdominal muscles engage. Imagine you are starting a tiny crunch. Do not lift all the way up.

Step 4. Feel what your fingers are sitting in. You are looking for two things:

• Width: how many finger widths can you fit between the two muscle ridges?
• Depth and tension: does it feel firm and shallow, or soft and deep, like your fingers can sink in?

Step 5. Repeat the check 2-3 inches above your navel, and 2-3 inches below. The gap can be different in different places.

How to interpret what you feel:

Finger widths	Tension	What it likely means
0-1 finger	Firm	Normal, no diastasis
1-2 fingers	Firm	Borderline, monitor
2-3 fingers	Soft, sinks slightly	Mild to moderate diastasis recti
3+ fingers	Very soft, fingers sink deep	Significant diastasis, see a physiotherapist
Any width with doming or coning of the belly	Soft	Connective tissue is under load, modify exercise

The “doming” or “coning” is the part most women miss. If, when you lift your head, the centre of your belly pushes UP into a ridge or cone shape instead of staying flat, that tells you the connective tissue is not yet able to hold pressure inside the abdomen. This is a more important signal than the finger-width number alone.

You can also do this check standing in front of a mirror. Engage your core gently and watch the centre of your belly. A flat belly that domes outward when you cough or stand up from lying down is a strong sign.

Note: This self-check is a starting point, not a diagnosis. If you find a significant gap, soft tension, or doming, the most useful next step is a referral to a women’s health physiotherapist, who can measure the inter-recti distance precisely and design a recovery plan for your specific case.

Why Crunches and Sit-Ups Make It Worse

This is the most important section of this post.

Most women coming out of pregnancy reach for the same exercises they did before they had a baby: sit-ups, crunches, planks, Russian twists. The thinking is, “I need to tighten my core, so I should work my abs hard.”

What actually happens is that these movements increase the pressure inside your abdomen and push outward against the already-stretched linea alba. Imagine pushing on a healing seam. Each crunch widens the gap by a tiny amount. Over weeks of daily work, the diastasis gets worse, not better.

Skip these until the gap closes:

• Full sit-ups and crunches
• Full planks (front and side)
• Mountain climbers and burpees
• Russian twists, bicycle crunches, V-ups
• Heavy lifting that makes you hold your breath and bear down
• Any movement that makes your belly dome or cone forward

This is not forever. Once the gap is under 2 finger widths and the tissue feels firm, most of these can come back gradually with proper core engagement. But the first 3-6 months of rehab need a different toolkit.

5 Safe Starter Exercises

These five movements form the foundation of diastasis recti recovery. They re-train your deep core (transverse abdominis), pelvic floor, and breath coordination, the three things that actually close the gap. The order matters, breath first, then core engagement, then movement.

Start with 8-10 repetitions of each, once a day, for 2 weeks. If everything feels good (no doming, no pelvic floor leaking, no pain), build up to 15 reps and add a second daily set. Most women see their gap close measurably within 8-12 weeks of consistent daily work.

Wear loose, comfortable clothes. Empty your bladder first. Do these on an empty stomach if possible, or at least 1 hour after a meal.

Exercise 1: Diaphragmatic Breathing (the foundation)

This is the most important exercise on this list. Skip the others if you have to, but do not skip this one. Proper breathing is what re-connects your diaphragm and pelvic floor, the two ends of your core canister.

How to do it:

1. Lie on your back, knees bent, feet flat. Place one hand on your chest and one on your belly.
2. Inhale slowly through your nose for 4 counts. Feel your belly rise (your hand goes up), then your ribcage expand sideways. Your chest should stay relatively still.
3. Exhale slowly through pursed lips for 6 counts. Feel your belly gently fall and your ribs come back together. As you finish the exhale, draw your lower belly slightly inward, as if you are zipping up a tight pair of jeans. This is your transverse abdominis activating.
4. Pause for a moment, then inhale again.

Do 10 slow breaths. This is the “warm-up” before every other exercise.

Exercise 2: Pelvic Tilts

This wakes up your deep core and reconnects the link between your hips and your abdominals.

How to do it:

1. Lie on your back, knees bent, feet flat, arms relaxed at your sides.
2. Inhale to prepare. As you exhale, gently tilt your pelvis backward so the small of your back presses into the floor. Your tailbone lifts very slightly. Engage your lower belly as you tilt.
3. Inhale and release back to neutral.
4. Repeat 8-10 times, slow and controlled.

The movement is small. You are not lifting your hips off the floor, you are just rocking the pelvis a few degrees.

Exercise 3: Heel Slides

This is the first “loading” exercise. You add a small amount of leg movement while keeping your core engaged and your back stable.

How to do it:

1. Lie on your back, knees bent, feet flat. Engage your lower belly as in the breathing exercise.
2. Inhale to prepare. As you exhale, slowly slide one heel along the floor away from you, until your leg is straight or almost straight. Keep your lower back gently pressed to the floor (no arching).
3. Inhale and slide the heel back to the starting position.
4. Repeat with the other leg.

Do 8-10 reps per side. Watch your belly as you slide the heel out, if it domes, you have gone too far. Pull back to a shorter range.

Exercise 4: Glute Bridges

Strong glutes take pressure off your over-worked lower back and help your pelvis sit in a better position, both of which help diastasis heal.

How to do it:

1. Lie on your back, knees bent, feet flat and hip-width apart.
2. Inhale to prepare. As you exhale, draw your lower belly in, then squeeze your glutes and lift your hips off the floor until your body forms a straight line from shoulders to knees.
3. Hold for 2 seconds at the top. Do not let your belly dome upward.
4. Inhale as you slowly lower back down.

Do 8-10 reps. If you feel this in your lower back instead of your glutes, lift to a smaller height and focus on squeezing the glutes harder.

Exercise 5: Modified Bird-Dog

This is the most advanced of the five. It teaches your core to stabilise while your arms and legs move, which is exactly what you need for picking up your baby, putting down a car seat, or standing up from the floor without your belly bulging out.

How to do it:

1. Start on hands and knees, hands under shoulders, knees under hips. Spine in a long, neutral position (not arched, not rounded).
2. Engage your lower belly as you exhale.
3. Slowly extend your right arm forward to shoulder height. Hold for 2 seconds. Return to start.
4. Slowly extend your left leg back to hip height. Hold for 2 seconds. Return to start.
5. Alternate sides. Keep your hips level (do not let one side dip), and do not let your belly sag toward the floor.

Do 6-8 reps per side. The “modified” part is that you are moving one limb at a time, not opposite arm and leg together. Add the opposite-limb version only after 2-3 weeks of clean single-limb reps.

What Else Helps the Gap Close

Daily exercises are the core of recovery, but a few other things matter:

• Posture. Standing tall with ribs stacked over hips (not flared forward, not collapsed back) puts the linea alba in its best healing position. Slumping or “mom posture” with the pelvis tucked under makes it harder for the gap to close.
• How you get out of bed. Do not sit straight up from lying flat for the first 6 months postpartum. Roll onto your side, push up with your arm. The “log roll” prevents you from doing 10-15 sneaky crunches every morning.
• How you lift your baby. Lift with your legs, exhale as you lift, engage your core gently. Holding your breath and yanking up a 7 kg baby with bent-over arms is a daily diastasis stress test.
• Pelvic floor work. Diastasis recti and pelvic floor weakness travel together. If you leak when you cough, sneeze, or jump, your pelvic floor needs attention too. Kegels (for most women) or pelvic floor relaxation work (for some) is part of the same recovery picture.
• Patience with the timeline. Most women see measurable improvement at 8-12 weeks of consistent daily work. Significant cosmetic change can take 4-6 months. The gap closing first happens in tension (the tissue gets firmer), then in width.
• Nutrition for connective tissue healing. Adequate protein (about 1.2-1.5 g per kg body weight while breastfeeding), Vitamin C (amla, citrus, capsicum), and zinc (dal, paneer, eggs, pumpkin seeds) all support collagen synthesis. This is the same nutrition foundation we cover in our postpartum recovery guide.

When to See a Doctor or Physiotherapist

Most diastasis cases improve with daily home exercise. But there are situations where you should not go it alone.

Book a women’s health physiotherapy assessment if:

• Your gap is wider than 3 fingers at 12 weeks postpartum or beyond.
• You have done daily core work for 3 months and the gap has not changed.
• You have pelvic floor symptoms (leaking, heaviness, pain during intimacy) along with the diastasis.
• You have lower back pain that does not improve with rest.

See your OB-GYN if:

• You feel a soft bulge in the centre of your belly that gets bigger when you cough or strain. This could be an umbilical or epigastric hernia, which is a related but separate condition that needs medical evaluation.
• You have ongoing pain in the centre of your abdomen.
• You had a C-section and have any concerns about how the incision is healing.

Surgery for diastasis recti exists (usually called abdominoplasty with rectus plication), but it is rarely the first or even the second line. Most women do not need it. We reserve this conversation for cases where 6+ months of dedicated rehab plus pelvic floor work has not produced enough functional improvement, and the woman has finished having children.

A Note From Dr. Suganya Venkat

The “mummy tummy” that does not go away gets blamed on so many things. Diet. Willpower. “Just hold it in.” Almost every postpartum woman I see who is unhappy with her belly has been told some version of “you just need to lose more weight” or “do more crunches.”

If you have done both and your belly still looks pregnant, please do this self-check. There is a high chance there is a clinical reason for what you are seeing, and the path forward is rehab, not restriction.

This is also one of the most rewarding things to fix. Women who put 10 minutes a day into the right exercises see their belly start to look and feel different by 8-12 weeks. The change in confidence is real.

You are not failing at recovery. You may just be doing the wrong exercises. Let’s get you on the right ones.

Frequently Asked Questions

How long after delivery should I wait before checking for diastasis recti?

Wait at least 4-6 weeks after a vaginal delivery and 8-10 weeks after a C-section. Earlier than that, your tissues are still in active recovery and any “gap” you feel is normal and likely to close on its own. After 6 weeks, a persistent gap of 2 finger widths or more is what we call diastasis recti.

Can diastasis recti close on its own without exercises?

Mild cases (1-2 finger gap) often do close on their own in the first 3 months postpartum, especially with normal daily activity. Moderate cases (2-3 fingers) usually need targeted exercises to close fully. Severe cases (3+ fingers) almost always need structured rehab, often with physiotherapy support.

Is diastasis recti the same as a hernia?

No. Diastasis recti is a thinning and stretching of the linea alba (the connective tissue between your abs). A hernia is when a piece of fat or organ pushes through a weak spot in the abdominal wall. The two can occur together. If you feel a soft, distinct bulge that gets bigger when you cough or strain (especially around your belly button), that is more likely a hernia and needs evaluation by a doctor.

Can I do diastasis recti exercises while breastfeeding?

Yes, and you should. The exercises in this post place no stress on milk supply or nursing positions. Many women actually find that better core strength makes nursing more comfortable because they are not slumping forward as much.

Will a postpartum belly band or compression garment fix diastasis recti?

A belly band can give some short-term support and feel comforting in the first few weeks postpartum, especially for C-section recovery. But on its own, a binder does not close the gap. Tissue closes through targeted muscle re-training, not through external compression. If you wear a binder, treat it as one small tool alongside daily exercises, not as a replacement for them.

How do I know if my exercises are working?

Re-check your gap every 2 weeks using the same self-check. You are looking for two changes: the gap getting narrower (fewer finger widths) AND the tension getting firmer (your fingers cannot sink in as deep). The firmness change usually happens first. If neither has changed after 8 weeks of daily work, ask for a physiotherapy referral.

I had a C-section. Are these exercises safe for me?

Yes, but wait until 8-10 weeks postpartum (or your 6-week check-up plus another 2-4 weeks) before starting Exercises 3, 4, and 5. The breathing and pelvic tilt exercises (1 and 2) can usually start earlier, around 4-6 weeks, once your incision feels comfortable. If you had any complications, ask your OB-GYN before starting. For more on C-section recovery generally, read our C-section guide.

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Dr. Suganya Venkat is an OB-GYN with 15+ years of clinical experience. DNB OB-GYN (GKNM, Coimbatore) · MD Pathology (CMC Vellore) · MBBS with 5 Gold Medals (SRMC). She founded Fertilia to provide holistic, evidence-based care for fertility, PCOS, pregnancy, and postpartum recovery.

Related Reading

• Post Delivery Care: Day 1 to Week 6 Guide for Indian Mothers, the full recovery framework that diastasis rehab fits into
• Postpartum Weight Loss: Safe & Evidence-Based Guide, why timeline matters and what actually helps
• Postpartum Bleeding (Lochia): What’s Normal After Delivery, week-by-week recovery markers
• C-Section Delivery: What to Expect & How to Recover, specific recovery considerations after surgical delivery