Why you leak when you run — and how to fix it

If you leak when you run — or feel pressure, heaviness, or like you have to brace yourself before a hard effort — you've probably gotten one piece of advice: stop running. That's not a treatment plan. It's a way of avoiding the problem instead of fixing it.

Why "just stop running" misses the point

Leaking or pressure during high-impact exercise is your body telling you that your pelvic floor and core aren't yet handling load the way they need to. Rest alone doesn't retrain that — which is why so many women take months off, come back, and find the exact same thing waiting for them. The goal isn't to avoid running forever. It's to build your body back up to tolerate it.

What's actually happening

Every running stride, every jump, every heavy lift sends force down through your system. Your pelvic floor and deep core are supposed to manage that pressure in a coordinated way. When that coordination is off — common after pregnancy, but also in women who've never been pregnant — the pressure has to go somewhere, and the result is leaking, a feeling of heaviness, or pelvic pressure. It tends to show up exactly where you'd expect: at higher mileage, heavier weights, or more explosive movements.

How a specialist approaches it

A real return-to-activity plan tests how your body actually tolerates load, retrains the coordination between your breathing, core, and pelvic floor, and then progressively builds you back toward your sport — instead of handing you a generic timeline. We work with runners, but also lifters, CrossFitters, and women returning to all kinds of high-impact training.

One of our patients is a personal trainer herself. She describes her sessions as the best thing she does for her own body — gaining more core control than she'd had even before pregnancy. Expert eyes catch what you can't feel on your own.

The bottom line

Leaking when you run is common, but it's not a sign you're done as an athlete. With the right retraining, most women get back to running, lifting, and jumping without bracing for a leak.