Pelvic floor therapy does help diastasis recti. Targeted abdominal exercises, the core of what pelvic floor therapists prescribe, reduce the gap between the abdominal muscles by an average of about 7 millimeters compared to doing nothing. That may sound modest, but for many women it’s enough to restore functional core strength, reduce symptoms like lower back pain and pelvic instability, and avoid surgery. The results improve further when exercises are combined with other techniques like electrical stimulation.
How Diastasis Recti Is Measured
Diastasis recti is diagnosed when the gap between the left and right sides of the rectus abdominis (your “six-pack” muscles) measures 20 millimeters or more, roughly two finger-widths. Clinicians typically check three spots: at the belly button, about 3 centimeters above it, and 3 centimeters below it. If the gap exceeds the threshold at any of those locations, it qualifies as diastasis recti.
Severity is often classified by finger-widths. A gap of two to three finger-widths is considered mild, three to four is moderate, and anything beyond four finger-widths is severe. Knowing your starting point matters because it shapes what kind of improvement you can realistically expect from therapy alone.
What Happens During Pelvic Floor Therapy
A pelvic floor therapist treating diastasis recti focuses on retraining the deep core muscles, particularly the transverse abdominis (the deepest abdominal layer that wraps around your torso like a corset) and the pelvic floor muscles that form the base of your core. These two muscle groups work together with your diaphragm to create intra-abdominal pressure, and learning to coordinate them properly is the foundation of rehabilitation.
Early sessions typically involve learning to contract and relax the pelvic floor in sync with your breathing. Your therapist will guide you through diaphragmatic breathing paired with gentle abdominal engagement. As you progress, exercises become more dynamic: functional movements, light resistance work, and eventually more demanding core challenges. Some programs also incorporate hypopressive exercises (a technique involving specific postures combined with a breathing hold that draws the abdomen inward), yoga-based movements, or suspension training.
A key finding from recent research is that isotonic exercises, meaning exercises where the muscles shorten and lengthen under load rather than just holding a static position, are the type that produce significant gap reduction. Static holds alone don’t appear to move the needle as much. So if your program includes movements like slow curl-ups, leg slides, or modified planks with controlled breathing, that aligns with the strongest evidence.
How Much Improvement to Expect
A systematic review and meta-analysis of postpartum studies found that abdominal exercise programs reduced the inter-recti distance by about 6.8 millimeters on average compared to no intervention. When exercises were combined with electrical stimulation (small electrode pads placed on the abdomen to help activate the muscles), the reduction was even greater, around 4.4 millimeters beyond what exercises alone achieved.
One randomized trial comparing conventional abdominal exercises to hypopressive exercises found that both approaches reduced the gap by roughly 3 millimeters after a six-week program, and the improvement held over time. The two methods worked slightly differently: conventional exercises reduced the gap at rest, while hypopressive exercises primarily reduced it during muscle contraction. Both are valid approaches, and your therapist may use elements of each.
Women who have had multiple pregnancies appear to benefit the most from structured exercise programs. That’s worth knowing if you’re a second- or third-time parent wondering whether therapy is still worthwhile.
Typical Treatment Timeline
You don’t need to wait until six weeks postpartum to begin some form of rehabilitation. In fact, research from the International Journal of Sports Physical Therapy suggests that delaying all guided rehab until the six-week mark may compromise recovery, since many women spend those early weeks navigating the postpartum period without any structured movement guidance.
During the first two weeks postpartum, gentle pelvic floor contractions and light movements that mimic walking are appropriate, as long as you’re not symptomatic. By weeks three and four, you can begin short-hold pelvic floor contractions (around five seconds) and start coordinating your pelvic floor and transverse abdominis with proper breathing. Formal therapy programs in clinical studies typically begin around six weeks postpartum and run for 12 to 16 weeks.
The most common format is one supervised session per week, with daily home exercises. In one well-designed trial, women attended a weekly supervised class for 16 weeks and performed three sets of pelvic floor exercises at home every day. That daily home component is essential. Once-a-week supervised training alone is generally considered an insufficient dose to fully restore the abdominal wall, but it’s enough to teach proper technique that you then reinforce on your own.
When Therapy Isn’t Enough
Pelvic floor therapy works well for mild to moderate diastasis recti, but severe cases sometimes require surgical repair. There’s no single cutoff that automatically means you need surgery. Instead, the decision usually comes down to whether conservative treatment has plateaued and you’re still experiencing significant symptoms: persistent bulging, lower back pain that doesn’t improve, or a gap that remains wide despite months of dedicated exercise.
If your gap is greater than four finger-widths and you’ve completed a full course of therapy (typically three to four months of consistent work) without meaningful improvement in either the measurement or your symptoms, that’s the point where a surgical consultation makes sense. Surgery for diastasis recti usually involves plicating (stitching together) the connective tissue between the muscles, sometimes combined with hernia repair if one is present.
Making Therapy Work
The biggest predictor of success isn’t which specific exercises you do. It’s consistency. Programs that produced measurable results in studies had women exercising daily at home in addition to their supervised sessions. Three sets of pelvic floor and deep core exercises per day, performed correctly, is the baseline that drives change.
Getting the technique right early on matters more than increasing intensity quickly. Bearing down or bracing outward during exercises can actually worsen the separation. A pelvic floor therapist’s main value is ensuring you’re activating the right muscles in the right sequence before you progress to harder movements. If cost or access is a barrier, even a few initial sessions to learn proper form, followed by a disciplined home program, can produce results comparable to longer supervised courses.