Diastasis Recti and Prolapse: What the Research Actually Says

Diastasis Recti and prolapse often arrive together — but does one cause the other? Here's what the research actually says, and what it means for how you train.
Written by: Simone Muller

Level 3 Hypopressives Instructor

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Diastasis Recti and prolapse: the question I get asked all the time

If you have been diagnosed with both Diastasis Recti and pelvic organ prolapse, the first question is usually the same: did one cause the other? Women come to me having read conflicting things online, some sources say Diastasis Recti directly causes prolapse, others say the connection is being overstated. It is confusing, and when you are dealing with both, the last thing you need is more uncertainty.

I want to give you a straight answer, based on what the research actually shows. And then I want to show you what to do with that information, because understanding the relationship between these two conditions changes how you train, how you manage pressure, and how much progress you can make.

Does Diastasis Recti cause prolapse?

The honest answer is: not directly. The current evidence does not support a straightforward causal link between Diastasis Recti and pelvic organ prolapse. A prospective study specifically examining this found no significant association between the two when other factors were accounted for, and this is something evidence-based pelvic health physiotherapists have been working to clarify in recent years, precisely because the myth has caused a lot of unnecessary fear.

What the research does show is that Diastasis Recti and prolapse share the same risk factors. Pregnancy, vaginal birth, connective tissue changes, and the hormonal shifts of menopause all affect both the abdominal wall and the pelvic floor at the same time. This is why the two conditions so commonly co-occur in postnatal women, not because one has caused the other, but because the same events have affected multiple parts of the same system.

That distinction matters enormously. It means that having Diastasis Recti does not make your prolapse situation hopeless, and recovering from diastasis does not depend on first fixing your prolapse. They can be, and usually are, worked on together, through the same pressure-aware approach.

Where the confusion comes from

Part of the confusion is that Diastasis Recti and prolapse both involve the same underlying concept: intra-abdominal pressure management. The linea alba, the connective tissue that runs down the centre of your abdomen and is affected in diastasis, is part of the same system that transfers load between your abdominal wall and your pelvic floor. When that system is not working efficiently, pressure can be managed poorly throughout the whole canister.

So whilst diastasis does not cause prolapse, the two conditions are connected through shared mechanics. And that shared mechanics is actually good news, because it means the same approach can help both.

How Diastasis Recti and prolapse affect each other in practice

Even without a direct causal link, having both conditions at the same time does create a more complex picture, and it is worth understanding how they interact day to day.

Pressure management becomes more layered

Your deep core system, the diaphragm, transversus abdominis, pelvic floor, and multifidus, works together to manage the pressure inside your abdomen during every movement, breath, and exertion. When the linea alba has separated (Diastasis Recti), the transmission of force through the abdominal wall is altered. This does not automatically mean more pressure on the pelvic floor, but it does mean the system has to work harder to maintain coordination.

For a woman who also has prolapse, this matters because her pelvic floor is already under strain. The priority in training becomes restoring efficient pressure management throughout the whole system, not just strengthening isolated muscles.

Symptoms can overlap and amplify each other

Women with both conditions often describe a general sense of core instability, a feeling that nothing is quite holding together. Heaviness or dragging in the pelvis (a classic prolapse symptom) can feel worse on days when the core feels less supported. A visible or palpable gap in the abdomen (diastasis) can make women feel reluctant to exercise at all, which in turn reduces the movement that would actually help both conditions.

I see this pattern regularly. The instinct to stop moving because of fear is understandable, but it is usually the thing that slows recovery most. What you need is not rest, but the right kind of movement.

How Hypopressives help when you have both Diastasis Recti and prolapse

Hypopressives are not the only tool for these conditions, but they are a particularly good fit when both are present, and this is why I place them at the centre of re-centre’s approach.

The mechanism: working with pressure, not against it

Hypopressives use specific postures combined with a breath-hold technique called an apnea, a pause after a full exhale, to create a gentle vacuum effect inside the torso. This reduces intra-abdominal pressure and triggers a reflex lift of the pelvic floor and deep core simultaneously. You are not bearing down or bracing. You are training your system to manage pressure from the inside out.

This is the opposite of what happens with many conventional core exercises. Crunches, heavy planks, and exercises performed with breath-holding all spike intra-abdominal pressure, which is precisely what you want to avoid when you have both a separated abdominal wall and a pelvic floor that is already under strain.

What the evidence shows for Diastasis Recti

A randomised controlled trial in postpartum women compared hypopressive exercises with conventional abdominal exercises over 8 weeks. Both groups showed significant reductions in inter-rectus distance, the gap at the linea alba, but the hypopressive group showed statistically better improvements in some measures. A subsequent 6-week trial confirmed that Hypopressives and conventional exercises produced similar positive effects on the gap, with the added advantage that Hypopressives did not increase downward pressure during the process.

For women with both diastasis and prolapse, this matters. You can make meaningful progress on the abdominal separation without the pressure loading that would aggravate prolapse symptoms.

What the evidence shows for prolapse

The same RCT of 117 women with pelvic floor dysfunction found that an 8-week hypopressive programme produced significant improvements in prolapse-related symptom scores, pelvic floor muscle strength, and overall impact on daily life. Ultrasound-based research also suggests Hypopressives can increase levator ani muscle thickness and reduce the genital hiatus area, structural changes that support prolapse management over time.

Combining Hypopressives with other approaches

I generally recommend Hypopressives as the foundation when both conditions are present, particularly in the early stages. From there, progressive pelvic floor muscle training (Kegels with correct technique) can be layered in to build specific muscle strength. As symptoms stabilise, pelvic floor-aware strength training and Pilates can be introduced to support the whole system, hips, glutes, deep core, and abdominal wall together.

The sequence matters. Starting with pressure management first, then adding load progressively, is a much safer pathway than going straight to strength work when the system is still recovering.

Where to begin

The most common mistake I see is women trying to do too much too soon, or avoiding everything out of fear. Neither serves you. Here is the approach I recommend.

  • Begin with the Getting Started with Hypopressives video in your re-centre membership. Learning the apnea technique properly is the foundation, without it, the exercises do not produce the same pressure-reducing effect.
  • Join a live Fundamentals session with me. For women with both diastasis and prolapse, I particularly value having the chance to check technique in person, small adjustments in posture and breathing can make a significant difference to how the exercise feels and what it achieves.
  • Aim for three sessions of 15–20 minutes per week. Consistency over 8 weeks is where the research shows meaningful change.
  • Be patient with the diastasis. The gap in the linea alba is one measure of progress, but it is not the only one. How the system functions, how well it manages pressure, how stable and supported you feel, matters as much as the width of the gap.

A note on safety: if you have significant prolapse symptoms, particularly a strong dragging sensation, visible bulging, or symptoms that are worsening, please get a pelvic health physiotherapist assessment before starting. They can stage your prolapse, assess your diastasis, and confirm the right starting point for you. re-centre works well alongside physiotherapy; it is not a replacement for it.

You do not have to choose between managing your diastasis and managing your prolapse. With the right pressure-aware approach, you can work on both at the same time, and that is exactly what re-centre is designed to support.

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About the Author

Written by: Simone Muller

Simone is London's first Level 3 certified Low Pressure Fitness instructor with over 15 years of teaching experience. She specialises in postpartum recovery, pelvic floor health, and helping women regain core strength and confidence through Hypopressives.

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