Diastasis Recti: What the Abdominal Separation After Pregnancy Looks Like and When Physical Therapy Helps

Diastasis recti is a common condition in pregnancy and postpartum, where the two large parallel bands of abdominal muscle (rectus abdominis) separate. Understanding what it looks like and when to pursue physical therapy can help you recover safely, rebuild core stability and improve comfort.

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What Is Diastasis Recti?

• Definition: Diastasis recti happens when the connective tissue (linea alba) between the left and right sides of the rectus abdominis stretches and thins, causing a gap.
• Cause: Growing uterus pushes against abdominal wall, combined with pregnancy hormones (e.g., relaxin) that soften connective tissue.
• Prevalence: Affects an estimated 60% of pregnant and postpartum people.

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How Diastasis Recti Presents

Many people notice diastasis recti in the weeks or months after childbirth, but separation can also begin in the second or third trimester.

Typical signs:

• A visible bulge or "ridge" running vertically from the breastbone to the belly button when you tense your abdominal muscles (for example, when lifting your head from a lying position).
• Lower back pain or pelvic discomfort due to reduced core support.
• Weaker pelvic floor function, sometimes leading to mild urinary leakage.
• Poor posture, as weakened abs struggle to support the spine.

What it can look like:

1. With light head lift in supine position:
   • You may see a ridge or doming along the midline.
2. In daily activities:
   • When standing, a soft "pooch" or bulge around the belly button.
3. During movement:
   • Feeling instability or "wobbly" core when lifting, carrying or twisting.

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Checking for Diastasis Recti at Home

A gentle self-check can give you an idea if separation is present. If in doubt, consult a professional.

1. Lie on your back with knees bent and feet flat on the floor.
2. Place one hand behind your head; the other hand's fingertips on your midline just above the belly button.
3. Gently lift your head and shoulders a few inches off the floor.
4. Feel for a gap:
   • 0 fingers = no gap
   • 1–2 fingers = mild separation
   • 2–3 fingers = moderate separation
   • More than 3 fingers = significant separation

Note: Finger-width assessments are a rough guide. A trained physical therapist can measure more accurately with calipers.

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When Physical Therapy Helps

Physical therapy (PT) plays a key role in safely healing diastasis recti by:

• Teaching you how to engage the deep core muscles (transverse abdominis and pelvic floor) correctly.
• Guiding you through exercises that do not worsen the separation.
• Helping you modify daily activities—lifting, carrying, even getting out of bed—to protect your healing tissue.

Consider PT if you:

• Have a gap wider than two finger-widths along your midline.
• Feel a bulge when you activate your abs or during everyday movements.
• Experience low back pain, pelvic pain or urinary leakage.
• Are more than six weeks postpartum and separation persists.

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Key Components of a Postpartum PT Program

A structured physical therapy approach may include:

• Breath control and gentle abdominal drawing-in maneuvers
• Pelvic floor activation and relaxation techniques
• Core stability exercises (e.g., modified planks, heel slides, dead bugs)
• Postural re-education for sitting, standing and lifting
• Gradual progression to functional movements (e.g., squats, lunges)
• Education on body mechanics to prevent flare-ups

Your therapist will tailor the plan to your specific gap size, fitness level and any related symptoms.

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Safe Exercises vs. Exercises to Avoid

Safe exercises (begin only when cleared by your provider):

• Pelvic tilts and pelvic clocks
• Kegels and diaphragmatic breathing
• Heel slides and pelvic bridges
• Seated or hands-and-knees "belly breathing" drills

Exercises to avoid until healing occurs:

• Traditional sit-ups or crunches
• Full planks without proper core engagement
• Intense twisting or rotational movements
• Heavy lifting without bracing techniques

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Risk Factors and Prevention

While you can't control every factor, being aware can help you protect your core:

Risk factors:

• Multiple pregnancies, especially close together
• Large baby or twins
• Excessive gestational weight gain
• High-impact exercise in late pregnancy
• Genetics or connective tissue disorders

Prevention tips:

• Maintain moderate strength training before and during early pregnancy.
• Focus on proper posture and core activation.
• Avoid bearing down when moving or lifting.
• Listen to your body—modify activities that increase midline doming.

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When to Seek Medical Attention

Diastasis recti itself is not life-threatening, but it can coexist with or resemble other conditions:

• Umbilical or ventral hernia (feeling a firm knot or sharp pain at the bulge)
• Severe midline pain, fever or redness
• Sudden changes in bowel or bladder function
• Any sign of strangulation: intense pain, vomiting, discoloration

If you experience these, speak to a doctor immediately.

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Free Online Symptom Check

If you're unsure whether your abdominal symptoms are related to diastasis recti or indicate something else that requires immediate attention, you can get personalized guidance through Ubie's Medically Approved LLM Symptom Checker, which helps you understand your symptoms and determine the right next steps for care.

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Moving Forward with Confidence

Healing diastasis recti takes time, often several months of consistent, guided effort. Celebrate small wins—improved posture, less back pain, better core connection. Working with a qualified physical therapist helps you rebuild strength safely, reduces discomfort and returns you to daily activities and exercise more effectively.

Finally, always speak to a doctor about any persistent or serious concerns. Early evaluation and tailored care ensure that postpartum recovery is as smooth and healthy as possible.