Can Diastasis Recti Be Fixed With Exercise? | Targeted Core

Yes, mild to moderate diastasis recti often improves with a targeted deep core exercise program, though severe cases may require surgical evaluation.

The word “separation” makes diastasis recti sound permanent — a gap in the abdominal wall that just stays put after pregnancy. It’s easy to assume that once those muscles split, the only fix involves a scalpel.

For most postpartum women, though, the story doesn’t end there. The gap can narrow significantly with the right kind of movement, especially in the first year. It’s not about endless crunches or hoping for the best. It’s about retraining the deepest abdominal muscles to support the midline again, and research suggests that targeted exercise can make a real difference.

What Diastasis Recti Actually Is

Diastasis recti is the partial or complete separation of the rectus abdominis muscles — the “six-pack” muscles — along the linea alba, the connective tissue running down the middle of your belly. The result is a visible bulge or “pooch” that can feel mushy or weak.

The key to understanding the condition lies in the transverse abdominis, the deepest abdominal muscle. Cleveland Clinic describes it as a natural corset that wraps around your torso. When that corset loses tension, the midline connective tissue stretches and the rectus muscles drift apart.

Pregnancy is the most common trigger. The growing uterus puts constant pressure on the abdominal wall, and the hormone relaxin softens the connective tissue, making separation more likely.

Why Classic Ab Workouts Backfire

It feels intuitive to attack a weak core with the usual moves — crunches, sit-ups, planks. The problem is that these exercises create intra-abdominal pressure that pushes the separated muscles further apart, making the gap wider instead of narrower.

• Crunches and sit-ups: These directly shorten the rectus abdominis, which increases pressure on the linea alba and encourages the bulge to dome outward.
• Planks: Without a perfectly braced core, planks can cause the belly to sag and the gap to widen, especially in the early stages of recovery.
• Downward dog and boat pose: Yoga poses that require full body tension can strain the midline if the transverse abdominis isn’t activated first.
• Double leg lifts: This move forces the lower abdominals to work against gravity, often causing visible coning or doming along the separation.
• Push-ups (unmodified): Holding a push-up position can make the abdominal wall cave inward, putting stress on the connective tissue.

A simple rule applies: if your belly bulges, cones, or domes during an exercise, stop immediately. That’s a sign the exercise is working against your recovery.

The Exercises That Can Help Close the Gap

A 2019 study published in the Journal of Women’s Health Physical Therapy found that a deep core stability program may help treat diastasis recti and improve quality of life. The program focuses on the transverse abdominis, the pelvic floor, and the multifidus muscles in the lower back.

Walking is often the safest starting point. For those just beginning, Ohio State Wexner Medical Center’s guide on safe cardio for diastasis recti emphasizes maintaining good posture and gently engaging the core throughout the day.

In a very small 2017 study, every participant who performed a specific daily core exercise — the “Keller” exercise — for 12 weeks saw improvement in their separation. While the study’s size limits how broadly the results apply, it suggests that consistent, focused work on the transverse abdominis can be powerful.

None of these safe exercises require special equipment, and they can be done in ten minutes a day. The goal is not intensity — it’s consistent, low-load activation that trains the corset muscle to support the midline.

How to Tell If Your Exercises Are Working

Progress with diastasis recti can feel slow, but there are clear signs that the gap is narrowing. Many women notice changes within six to twelve weeks of consistent work.

1. The finger test improves. Lying on your back with knees bent, lift your head slightly and feel the gap above and below your belly button. If the width or depth decreases over time, the exercises are working.
2. Coning and doming decrease. Those strange protrusions that appeared when you sat up from bed or did a crunch become less pronounced as the connective tissue tightens.
3. You feel stronger in daily life. Lifting your baby, getting out of a chair, and carrying groceries feel less like a strain on your lower back.
4. Posture improves naturally. When the deep core is working, the rib cage tends to stack more easily over the pelvis.

Many women also report less lower back pain as the deep core begins to share the load. These small changes add up to meaningful recovery.

When Exercise Isn’t Enough — Considering Surgery

The main question — can diastasis recti be fixed — is best answered by looking at the severity of the separation, something Cleveland Clinic’s diastasis recti overview covers in detail. For mild to moderate cases, physical therapy and at-home exercises are the standard first-line treatment.

However, if the gap is wide — typically three finger-widths or more — or if several months of consistent physical therapy fail to narrow it, surgical repair may be discussed. Surgery involves suturing the midline connective tissue back together.

Surgery is not typically the first stop, and most surgeons still want you to try physical therapy first. Even if you end up needing surgery, a stronger core going in leads to better outcomes on the other side.

The Bottom Line

Diastasis recti is often reversible with the right exercise approach, especially when you catch it early and focus on the transverse abdominis rather than traditional ab work. Consistent, gentle movement can narrow the gap, reduce the bulge, and improve core function.

If you’ve been working with a pelvic floor physical therapist for several months without seeing progress, or if your gap is wider than three fingers, a conversation with a general surgeon or a pelvic floor specialist can help you determine what your recovery needs next.