Diastasis Recti After Pregnancy

Diastasis Recti After Pregnancy: What It Is, How to Know If You Have It, and How Physiotherapy Helps.

If you are postpartum and you have noticed a gap, ridge, or cone-shaped bulge running down the centre of your abdomen - especially when you try to sit up- you may be dealing with diastasis recti. It is one of the most common postpartum conditions, affecting research estimates of up to 60% of pregnancies, and it is also one of the most commonly misunderstood. This article explains what diastasis recti actually is, how to check yourself at home, and what a physiotherapy-based rehabilitation programme involves.

What Diastasis Recti Is and Why It Happens

The two halves of your rectus abdominis- the paired muscle group running vertically down the centre of your abdomen- are connected by a band of connective tissue called the linea alba. During pregnancy, as the uterus expands, this connective tissue stretches and widens to accommodate the growing baby. The result is a separation between the two muscle bellies, called diastasis recti (also sometimes called diastasis rectus abdominis, or DRA).

The separation itself is a normal adaptation to pregnancy it is how the body makes room for the baby. The problem arises when the connective tissue does not regain adequate tension postpartum. A widened, lax linea alba means that the abdominal wall cannot generate and transfer force effectively. This leads to symptoms that many postpartum women experience but do not connect to the same underlying cause:

• A visible gap, ridge, or "tenting" along the midline, especially when rising from lying down

• Persistent abdominal weakness or a feeling that the core "does not work properly"

• Low back pain that is disproportionate to activity

• Pelvic floor dysfunction, including incontinence or pelvic pressure

• Hip and pelvic girdle pain

• Bloating and digestive discomfort (in some cases, due to the altered position of abdominal contents)

Diastasis recti can persist for months or years without targeted treatment.

The Self-Check: How to Test Yourself at Home

This is a rough screening tool, not a clinical assessment but it gives you a useful first indication.

1. Lie on your back with your knees bent and feet flat on the floor

2. Place your fingertips horizontally across your midline, just above your navel

3. Slowly lift your head and shoulders off the floor as if doing a gentle crunch

4. Feel for a gap or a soft, unsupported area between the two muscle bellies

Clinically, an inter-recti distance (IRD) the width of the gap , greater than approximately 2.7 cm at the level of the navel is considered significant. In practical terms: if you can fit two or more fingers into the gap, or if you notice a pronounced ridge or cone shape, it is worth having a physiotherapy assessment.

What you cannot assess at home is the tension of the linea alba how stiff and load-bearing the connective tissue is. A gap that feels firm and transfers force reasonably well is clinically different from a gap that feels soft and non-supportive, even if the width is the same. This is why a physiotherapy assessment adds information that self-checking cannot.

Why "Just Do More Crunches" Is Wrong and Can Make It Worse

The instinct to strengthen the abdomen after pregnancy is correct. The approach matters enormously.

Traditional crunches, sit-ups, and similar exercises that produce forward spinal flexion dramatically increase intra-abdominal pressure through the midline. When the linea alba is not yet able to manage that pressure load, these exercises do not strengthen the abdominal wall they push outward against the gap, potentially widening it further and increasing strain on the connective tissue.

The same applies to other high-load exercises: heavy deadlifts performed with a breath-holding or Valsalva technique, leg raises from lying, intense Pilates moves that involve direct spinal flexion, and running (particularly in the early postpartum period).

This is not a reason to avoid exercise postpartum movement and progressive loading are essential for recovery. It is a reason to progress intelligently, starting with exercises appropriate to your current abdominal wall function and advancing based on how your tissues respond. A physiotherapist designs that progression specifically for you.

What a Pelvic Floor Physiotherapy Assessment for Diastasis Recti Involves

Pelvic floor specialist- Manisha Hansra, takes a thorough history of your pregnancy, birth, and recovery, and then assesses your abdominal wall.

The assessment includes:

• Measuring the inter-recti distance (IRD) at multiple points along the linea alba (above the navel, at the navel, and below)

• Assessing linea alba tension- how the connective tissue handles load under controlled conditions

• Evaluating breathing mechanics and intra-abdominal pressure management- most women with diastasis recti are unconsciously using strategies that increase midline load during everyday activities

• Assessing the pelvic floor, which is functionally connected to the abdominal wall and is often involved in diastasis recti presentations

• Observing posture, movement patterns, and load transfer during functional tasks

From this assessment, your physiotherapist identifies the specific deficits driving your symptoms and designs a rehabilitation programme calibrated to where you currently are.

The Rehabilitation Approach: Exercise Progression, Breath Work, and Load Management

Diastasis recti rehabilitation at InHealth is structured in progressive phases:

Phase 1 — Foundational neuromuscular control Learning to coordinate breath, pelvic floor activation, and deep abdominal engagement (transversus abdominis) without creating excessive outward pressure through the midline. This phase corrects the movement patterns that perpetuate diastasis recti.

Phase 2 — Progressive loading Introducing controlled loading through the abdominal wall in positions and exercises appropriate to your current tissue capacity. This is where the linea alba begins to develop functional tension.

Phase 3 — Functional and sport-specific return Progressing to more demanding activities -heavier lifting, impact exercise, running as your abdominal wall and pelvic floor demonstrate the capacity to manage the load.

The pacing between phases varies. Some patients move quickly; others need more time at each stage. Your physiotherapist reassesses your progress and adjusts the programme accordingly.

When Diastasis Recti Requires Medical Referral

Physiotherapy is the primary treatment for the vast majority of diastasis recti presentations. There are specific situations in which your physiotherapist may recommend a referral to your GP or to a urogynecologist:

• A hernia is present at the midline (abdominal contents protruding through the gap) hernias require surgical assessment

• Symptoms are severe and not responding to a structured 12-week physiotherapy programme

• The gap is extremely wide (greater than 4–5 cm) with minimal connective tissue tension, particularly if it is causing significant functional limitation

In most cases, physiotherapy is highly effective on its own and surgical intervention is not required.

How Long Recovery Takes and What "Full Recovery" Means

Recovery timelines depend on the severity of the diastasis, the patient's baseline fitness, and how consistently the home programme is followed. As a general guide:

• Mild diastasis with good connective tissue tension: noticeable improvement in 6–8 weeks

• Moderate diastasis: meaningful functional improvement in 10–16 weeks

• Severe or long-standing diastasis: 4–6 months or longer for full functional restoration

It is important to be clear about what "recovery" means. The goal is not to close the gap entirely — some widening of the linea alba is normal and does not require correction. The goal is to restore functional tension to the connective tissue so the abdominal wall can generate and transfer force effectively. A woman who has recovered from diastasis recti can run, lift, carry her children, and exercise without symptoms — even if a small inter-recti distance remains.

Returning to Exercise After Pregnancy: A Safe Timeline with Physiotherapy Guidance

The evidence-based guideline for return to running and high-impact exercise after childbirth is a minimum of 12 weeks postpartum not because of any single anatomical rule, but because pelvic floor and connective tissue recovery take time that cannot be accelerated by motivation alone.

Before returning to impact exercise, a physiotherapy assessment should confirm:

• Pelvic floor muscles are generating adequate strength and coordination

• The linea alba has sufficient tension to manage running load

• There is no pelvic organ prolapse or symptoms suggesting it

Many women who return to running at 6 weeks postpartum a common informal guideline with no clinical basis do so before their tissues are ready, leading to leakage, pelvic pressure, or worsening diastasis. A physiotherapy-guided return is safer and typically gets you back to the activities you enjoy more quickly in the end.

For the full scope of our postpartum physiotherapy programme, including pelvic floor assessment, diastasis recti rehabilitation, and return-to-activity planning visit our prenatal and postpartum physiotherapy and pelvic floor physiotherapy pages.