If you’ve searched this topic, you’ve probably seen confident claims in both directions — some sources insist diastasis recti (the separation of your abdominal muscles) directly causes pelvic floor problems like incontinence or prolapse, while others say there’s no real link at all. Here’s the honest answer: the research is genuinely mixed, and understanding why matters for how you approach treating either condition.
What Diastasis Recti Actually Is
Diastasis recti abdominis (DRA) is a separation of the rectus abdominis muscles — the “six-pack” muscles — at the connective tissue (linea alba) that normally holds them together down the midline of your abdomen. It’s extremely common during and after pregnancy, as the growing uterus stretches this connective tissue to accommodate your baby. Most research defines it as a separation of roughly 2 cm (20mm) or more, though diagnostic criteria vary somewhat between studies — which, as you’ll see below, is actually part of why the research on its effects is so inconsistent.
What the Research Actually Shows
This is where it gets genuinely interesting, and where a lot of marketing content oversimplifies things. Multiple peer-reviewed studies have examined whether diastasis recti is linked to pelvic floor dysfunction (a broader term covering issues like urinary incontinence, pelvic organ prolapse, and pelvic pain) — and the results don’t all point the same direction.
Studies finding little to no connection: A 2021 retrospective cohort study published in BMC Women’s Health examined 229 postpartum women and found no significant difference in urinary incontinence or pelvic organ prolapse rates between women with and without diastasis recti — even when testing different severity cutoffs. Similarly, a separate ultrasound-based study on early postpartum women concluded there was no clear correlation between diastasis recti and pelvic floor dysfunction.
Studies finding a meaningful connection: On the other hand, other research has found the opposite. One study on postpartum women following cesarean delivery found diastasis recti to be a strong predictor of pelvic floor dysfunction, including prolapse and urinary distress. A separate study using manometry (muscle pressure measurement) found a moderate relationship between the two conditions. Another frequently cited figure from earlier research found that over 60% of patients with diastasis recti also showed concurrent pelvic floor dysfunction.
Why the disagreement? A few likely reasons explain this inconsistency:
- Inconsistent diagnostic criteria — studies use different measurement locations and cutoff distances to define diastasis recti, which affects who gets counted as having it.
- Different measurement tools — some studies rely on manual palpation, others on ultrasound, and results can vary between methods.
- The conditions are likely multifactorial — a 2024 study description noted that findings “support the multifactorial nature of postpartum pelvic floor muscle function,” meaning diastasis recti alone likely isn’t the whole story for most people, even in studies where some correlation exists.
What This Actually Means for You
If you’re dealing with both diastasis recti and pelvic floor symptoms, here’s the practical takeaway: having one doesn’t automatically mean the other is caused by it, but the two frequently occur together — both are common consequences of the same pregnancy and childbirth process, which can stretch and weaken connective tissue and muscle in both regions simultaneously. They’re better understood as commonly co-occurring conditions with a shared cause (pregnancy-related tissue changes), rather than one directly causing the other in every case.
This is actually useful information, because it means:
- Fixing one doesn’t guarantee fixing the other. If your main goal is resolving incontinence, working exclusively on closing your ab gap may not get you there — and vice versa.
- Both deserve their own dedicated attention, rather than assuming a general core workout automatically addresses your pelvic floor, or that pelvic floor exercises alone will close your abdominal separation.
- A device or routine with separate training modes for each makes more practical sense than a one-size-fits-all approach, precisely because the research doesn’t support treating them as a single combined problem.
How to Approach Training Both
For diastasis recti, the general approach focuses on rebuilding tension and coordination in the deep core (particularly the transverse abdominis) through controlled, gentle engagement — rather than traditional crunches or sit-ups, which can sometimes increase intra-abdominal pressure in a way that worsens the gap rather than closing it.
For pelvic floor dysfunction, the approach depends on whether your main issue is weakness, tension, or coordination — which is why a proper assessment (ideally from a pelvic floor physical therapist) matters more here than guessing based on symptoms alone.
Devices with separate diastasis recti and pelvic floor training modes — rather than treating them as one combined function — reflect this more accurate understanding: you’re training two related but distinct muscle systems, each of which may need different attention depending on your specific presentation.
When to See a Specialist Instead of Self-Treating
Given how inconsistent the research is on causation, self-diagnosing “my pelvic floor issue is caused by my diastasis recti” (or the reverse) isn’t especially reliable. It’s worth seeing a pelvic floor physical therapist if:
- You have a visible or palpable abdominal gap that isn’t narrowing after consistent, appropriate exercise
- You’re experiencing incontinence, pelvic pressure, or pain alongside your diastasis recti
- You’re unsure whether your symptoms are connected or separate issues
- You want an individualized assessment rather than a generic training plan
A proper evaluation can determine whether you’re dealing with one issue, two separate issues, or a combination — which changes what “fixing it” actually requires.
Frequently Asked Questions
Does diastasis recti always cause pelvic floor dysfunction?
No. Research findings are mixed — some studies find a meaningful association, while others find no significant connection. The honest answer is that the two conditions commonly co-occur (often due to shared causes like pregnancy), but one doesn’t automatically cause the other in every case.
If I close my diastasis recti gap, will my pelvic floor symptoms improve automatically?
Not necessarily. Because research hasn’t established a consistent causal link, improving one condition doesn’t guarantee improvement in the other. It’s worth training and monitoring both separately rather than assuming one “fixes” the other.
How is diastasis recti diagnosed?
It’s typically assessed by measuring the gap between the rectus abdominis muscles at specific points along the midline (often at, above, and below the belly button), using manual palpation or ultrasound imaging. A gap of roughly 2 cm or more is commonly used as a general threshold, though exact criteria vary by provider and study.
Can exercise alone close a diastasis recti gap?
For many people, targeted deep-core exercise can help narrow the gap over time, though severity, time since giving birth, and individual tissue response all affect outcomes. More significant or persistent separations may benefit from guidance by a physical therapist, and in some cases, surgical evaluation.
Is it normal to still have some diastasis recti months after giving birth?
Yes, some degree of separation can persist for months, and in some cases longer, especially without targeted exercise. Gradual improvement with consistent, appropriate training is the more realistic expectation than a quick full resolution.
