Preventing Diastasis Recti in Pregnancy, What Actually Works

In this article
- Why the linea alba stretches
- First trimester, build the base
- Second trimester, protect the seam
- Third trimester, unload and mobilise
- What to avoid all the way through
- The evening 5-minute routine
- FAQs
- Can I completely prevent diastasis recti?
- Is walking enough exercise in pregnancy?
- Should I wear a maternity support belt?
Every pregnant belly stretches. What you do while it stretches decides how well the connective tissue holds up after birth.
Why the linea alba stretches
The linea alba is the seam of connective tissue running down the middle of your abdomen. Relaxin and progesterone soften it during pregnancy so your uterus has room to grow. Every pregnancy stretches it. In about 100% of women by the third trimester there is some separation. What we care about is whether it stays stretched after birth.
First trimester, build the base
- Learn lateral breathing. Inhale into the sides and back of the ribs, exhale slowly. Aim for 3 sets of 10 breaths daily.
- Keep training your legs. Squats, sit-to-stands and step-ups load the core without pushing on the abdominal wall.
- Stop crunches, sit-ups and planks held to fatigue. Swap for bird-dog, side plank on the knees and dead bugs done with a full exhale.
Second trimester, protect the seam
- Roll to your side to get up from lying. Never crunch straight up, it visibly domes the belly and stresses the linea alba.
- Lift smart. Exhale on the effort. Keep the load close. Split heavy tasks into two trips.
- Watch posture. As the bump grows the pelvis tilts forward. Gently tuck the tailbone, lengthen the back of the neck.
Third trimester, unload and mobilise
- Reduce standing time in one block. Sit or walk to reset every 30 minutes.
- Use a support belt only for symptom relief, not all day. Passive support switches off the very muscles you need to stay active.
- Keep walking daily. 20 to 40 minutes at a conversational pace maintains circulation and pelvic mobility.
What to avoid all the way through
- Crunches, sit-ups, full planks and Russian twists
- Heavy overhead lifting after week 20
- Holding your breath during any effort (bracing without breath spikes intra-abdominal pressure)
- "Sucking in" the belly all day
The evening 5-minute routine
Every night before bed, run this:
- 10 lateral breaths on your side
- 10 pelvic tilts on hands and knees (cat-cow)
- 10 bird-dogs, alternating sides, with a slow exhale on each lift
Five minutes. Every night. This is the single most protective habit you can build before birth.
FAQs
Because this guide mentions…
- Pregnancy GuidesSafe loading and prevention across all three trimesters.
- Diastasis Recti GuideAssess the gap, understand what closes it, and progress safely.
- Lateral Breathing BasicsThe breathing mechanic every deep-core exercise is built on.
- Pelvic Floor GuideWhy leaks and heaviness happen, and how to train the floor properly.
Written by
Ana (Anastasia Uvarova)
Women's Health Physiotherapist
UK-qualified physiotherapist, founder of Alpha Physio Care
UK-qualified women's health physiotherapist and founder of Alpha Physio Care. Ana designed the Mum21 12-week recovery program.
Medically reviewed by
Ana (Anastasia Uvarova)
Women's Health Physiotherapist
UK-qualified physiotherapist, founder of Alpha Physio Care
UK-qualified women's health physiotherapist and founder of Alpha Physio Care. Ana designed the Mum21 12-week recovery program.
Last clinical review: 2 June 2026
Part of the Pregnancy topic hub, a physiotherapist-reviewed collection of guides on pregnancy.
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The next steps in the pregnancy learning path.
- Pelvic Floor Care in Pregnancy, The Muscle Nobody Warned You AboutA strong, coordinated pelvic floor in pregnancy means an easier birth, fewer leaks and a faster recovery. Here's the physio protocol. 6 min read · Pregnancy
- Safe Exercise During Pregnancy, A Trimester-by-Trimester GuideWhat to do, what to modify and what to skip in each trimester, so you finish pregnancy strong and start recovery in a better place. 7 min read · Pregnancy
- Diastasis Recti After a C-Section vs Vaginal Delivery, Is It Actually Different?A C-section doesn't cause diastasis recti, pregnancy does. But delivery mode does appear to change how likely and how severe it is. Here's what the research actually found, and why the fix is the same either way. 7 min read · C-Section Recovery
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