Postpartum Pelvic Floor Training Works. Here's What 65 Studies Actually Show.
Postpartum women are routinely told to do their pelvic floor exercises. The advice is common. The rationale behind it feels intuitive. The evidence, until recently, was scattered across studies that mixed pregnancy and postpartum populations together, used inconsistent outcome measures, and rarely followed women long enough to know whether the effects lasted.
A 2025 systematic review and meta-analysis published in the British Journal of Sports Medicine set out to change that. Researchers analyzed 65 studies involving 21,334 participants across 24 countries, focusing exclusively on the first year postpartum. The review examined the effects of exercise on urinary incontinence, pelvic organ prolapse, diastasis recti abdominis, anal incontinence, and sexual function.
It's the most comprehensive picture we have of postpartum exercise outcomes to date. And while it confirms that pelvic floor training works, the story is more complicated—and more interesting—than the standard recommendation suggests.
Why a Postpartum-Specific Review Matters
Most previous reviews didn't separate pregnancy from the postpartum period. On the surface that seems reasonable—both involve pelvic floor stress, hormonal changes, and shifting biomechanics. But the physiology is different, the training goals are different, and what the body is recovering from is different. Lumping them together obscures what actually happens when you apply structured exercise specifically in the months after delivery.
This review isolates that window. First year postpartum, no overlap with pregnancy data. That distinction matters for anyone trying to draw practical conclusions about programming.
The 65 included studies varied widely in design, training protocol, outcome measure, and population. Most used pelvic floor muscle training as the primary intervention. Some examined abdominal training for diastasis recti. A smaller number looked at multimodal programs combining pelvic floor work with general exercise. The heterogeneity across studies is worth keeping in mind throughout—it affects how confidently we can interpret the pooled results.
Pelvic Floor Muscle Training Works. That Part Is Clear.
Across seven randomized controlled trials involving nearly 2,000 women, pelvic floor muscle training consistently reduced the odds of urinary incontinence by 37% compared to no training. The odds ratio was 0.63, with a 95% confidence interval of 0.41 to 0.97. The certainty of evidence was rated moderate—the highest rating achieved in this review for any outcome.
To put that number in context: roughly one in three women still experience urinary incontinence one year after delivery. That's not a minor inconvenience affecting a small subgroup. It's a prevalent, often underreported condition that affects quality of life, exercise participation, and long-term pelvic health. A 37% reduction in odds from a structured exercise intervention is a clinically meaningful effect, not a marginal one.
The training protocols varied considerably across trials. Some used individualized supervised sessions, others used group classes, and others provided home programs with varying levels of instruction and follow-up. Despite this heterogeneity—which was high, with an I² of 72%—the directional finding was consistent across studies. That consistency matters. It suggests the effect isn't dependent on one specific protocol or one unusually successful trial.
There's one important distinction buried in these results, though. Training reduced the odds of having urinary incontinence. It did not consistently reduce how severe symptoms were in women who still experienced leaking despite training. The evidence for symptom severity was rated very low certainty, with no statistically significant effect found. These are two different outcomes—incidence versus severity—and conflating them leads to overpromising. Starting pelvic floor training is the right move and the evidence firmly supports it. But if a client is still symptomatic after a structured program, that's a signal for individualized clinical assessment, not just more of the same exercise.
One additional finding worth flagging: supervised or group-based training outperformed unsupervised home programs for symptom severity in the studies that compared them directly. The mechanism is likely a combination of coaching quality, exercise adherence, and progressive load. Doing pelvic floor exercises imperfectly at home is better than nothing. Having someone actually supervise technique and progression appears to be meaningfully better still.
The Prolapse Finding Is Significant—With Important Caveats
One randomized controlled trial of 123 women found that pelvic floor training reduced pelvic organ prolapse odds by 56%, with an odds ratio of 0.44 and a 95% confidence interval of 0.21 to 0.91. The certainty of evidence was rated moderate.
That's a substantial effect from an exercise intervention alone. Prolapse is a condition that often gets framed as something that happens to women, something to manage or eventually operate on—not something exercise can meaningfully prevent. This finding pushes back on that framing.
The caveats are real, though. This effect comes from a single trial, and the participants were women who had experienced perineal tears or episiotomies during delivery—a subgroup at elevated prolapse risk compared to the general postpartum population. We can't extend this finding to all postpartum women on the basis of one trial alone. The signal is strong enough to take seriously and to act on clinically. It is not strong enough to treat as a universal guarantee.
Timing also emerged as a potentially important factor in this section of the evidence. Studies measuring prolapse symptom severity—rather than the odds of prolapse occurring—found that women who began pelvic floor training before 12 weeks postpartum showed greater symptom improvement than those who started later. This pattern wasn't consistent across all outcomes, and the evidence base for it is limited. But it introduces a question that current postpartum protocols don't always address: does when you start training matter as much as whether you start?
The traditional model of waiting for the six-week clearance appointment before beginning any exercise may not serve all postpartum women optimally. That doesn't mean pushing women toward high-intensity training before tissues have healed. It means that appropriate, graduated pelvic floor work in the early weeks may be more beneficial—particularly for prolapse risk—than waiting until the standard clearance window.
The Diastasis Recti Picture Is More Complicated Than Your Feed Suggests
Abdominal training reduced inter-rectus distance at rest by approximately 0.52 centimeters across five trials involving 173 women. The certainty of evidence for this outcome was low. A separate analysis of two trials involving 84 women found a reduction of 0.47 centimeters during a head-lift movement, with moderate certainty.
The measurement changed. Whether that change translates to meaningful improvement in function, symptom resolution, or quality of life is a different question—and one the field genuinely hasn't answered yet.
The core problem is diagnostic. There is no agreed-upon threshold for what constitutes a clinically significant diastasis recti. The most commonly cited benchmark in clinical and fitness settings flags gaps greater than 2.2 centimeters as pathological. A more recent study using CT imaging found that gaps up to 3.4 centimeters fall within normal ranges in healthy adults who have no symptoms and no functional limitations. Most women in the studies analyzed by this review had inter-rectus distances below the stricter 2.2 centimeter threshold before training even began. Which raises an uncomfortable question: were researchers treating a real problem, or were they measuring a normal variation and calling it a condition?
This isn't a reason to ignore diastasis recti or to dismiss the concerns of postpartum women who experience it. Many women with abdominal separation have genuine functional limitations—difficulty managing intra-abdominal pressure, lower back pain, reduced load tolerance—that are worth taking seriously. But those functional limitations are what matter, not the millimeter gap. Abdominal training is safe and appropriate postpartum, and it produces measurable reductions in inter-rectus distance. Setting expectations around what that reduction actually means—and whether a smaller gap correlates with feeling or functioning better—is more honest than treating the measurement as the outcome.
Clinicians and coaches would be better served by assessing what a client can do: manage pressure, tolerate load, return to the movements they care about, without symptoms. That's a more useful framework than chasing a number on a caliper.
What the Evidence Couldn't Tell Us
The significant findings above exist alongside substantial gaps that are worth naming directly, because in practice they affect how far you can take these results.
No statistically significant effect was found for anal incontinence. One trial suggested a 42% reduction in odds—which would be a clinically meaningful finding if it held up—but the confidence intervals were wide enough that the result could not be distinguished from chance. The evidence was rated very low certainty. More and better-powered trials are needed before this outcome can be addressed with confidence.
Sexual function outcomes showed no significant effect across two trials involving 118 women, also rated very low certainty. Two trials with a combined sample of 118 people is not enough to conclude that exercise has no effect on postpartum sexual function. It's enough to conclude that we don't yet know.
The most glaring gap is this: not a single randomized controlled trial has examined the effects of general aerobic or resistance training on pelvic floor outcomes in the postpartum period. Running. Lifting. Cycling. CrossFit. Sport. These are the activities most postpartum women are eventually trying to return to, and we have no controlled evidence about how they affect pelvic floor health. The advice given in this space—start slow, listen to your body, avoid high-impact until you're cleared—is largely extrapolated from general principles and clinical experience. It's not evidence-based in the way we'd want it to be.
The training protocols across the included studies also varied enormously, and almost none of them would satisfy current standards for exercise prescription. No study implemented progressive overload. Most used static, low-dose programs—a fixed number of contractions per day, repeated over weeks without adjustment for adaptation or individual response. Progressive overload is a foundational principle of exercise science. Its absence from this body of research isn't a minor methodological footnote. It means we don't know what more sophisticated, better-designed postpartum programs could produce.
High heterogeneity across studies made pooled analysis difficult for several outcomes. Differences in how exercises were taught, how outcomes were measured, how long follow-up lasted, and what populations were included all contribute to a body of evidence that resists clean interpretation. The review authors are transparent about these limitations. Any practitioner working with postpartum clients should be too.
Why the Research Is Still Worth Using
It would be easy to read the above and conclude that the evidence base is too weak to be useful. That's the wrong takeaway.
Moderate-certainty evidence for a 37% reduction in urinary incontinence odds is meaningful. Moderate-certainty evidence for a 56% reduction in prolapse odds, even from a single trial in a high-risk subgroup, is meaningful. These aren't marginal findings from poorly designed studies. They're consistent signals across diverse populations and training contexts that point in the same direction.
The honest position isn't "the evidence is too limited to act on." It's "the evidence supports specific, targeted recommendations, and we should be transparent about where the evidence runs out and clinical judgment has to take over."
That's the position this review supports. Pelvic floor training in the postpartum year has a strong enough evidence base to recommend confidently. General aerobic and resistance training does not—not because it's likely harmful, but because the research hasn't been done. Those are different situations that call for different levels of confidence when talking to clients.
What This Means for Programming
Pelvic floor muscle training in the first postpartum year is the most evidence-supported intervention available. Start it. Don't wait for a perfect protocol, and don't wait for symptoms to become severe enough to feel justified in addressing them. The evidence supports proactive, early training as the default.
Supervised or group-based settings appear to produce better symptom outcomes than unsupervised home programs. When access to supervision is available—whether that's a pelvic floor physiotherapist, a postpartum fitness specialist, or a structured group class—it's worth recommending over generic home advice.
On timing, the early postpartum window may matter more than current guidance acknowledges, particularly for prolapse outcomes. This doesn't mean ignoring tissue healing or pushing women into load-bearing exercise before they're ready. It means graduated, appropriate pelvic floor work starting earlier than six weeks is likely supported for most women who are recovering normally.
On diastasis recti, abdominal training is safe, appropriate, and produces measurable reductions in inter-rectus distance. Set expectations honestly. The gap measurement will likely improve. What that improvement means functionally—and whether it correlates with resolution of symptoms—is a question the evidence can't yet answer cleanly. Focus programming on function, not on chasing a measurement.
For women with persistent symptoms despite structured training—ongoing leaking, prolapse symptoms, functional limitations—referral to a pelvic floor physiotherapist is the appropriate next step. This review documents what exercise can do. It doesn't suggest exercise alone is sufficient for everyone, and nothing in the evidence base supports managing clinical symptoms without clinical assessment.
The research in this space will continue to develop. The introduction of general aerobic and resistance training trials, better-designed progressive overload protocols, and longer follow-up periods will eventually fill the gaps this review identifies. What exists now is enough to build a coherent, evidence-informed approach for postpartum clients. That's a better foundation than the field had a decade ago, and a better one than most of what circulates on social media today.
Beamish, N., et al. (2025). Impact of postpartum exercise on pelvic floor disorders and diastasis recti abdominis: a systematic review and meta-analysis. British Journal of Sports Medicine. doi:10.1136/bjsports-2024-108619
