Lower Belly Bulge That Won't Go Away? Here's What It Means and What to Do
Updated July 20261 minute read
A lower-belly bulge or "doming" along the midline that won't go away — especially after pregnancy — is often diastasis recti, a separation of the abdominal muscles, sometimes with a deep core that isn't yet generating tension well. It's common and usually improves with progressive core and pelvic floor rehab rather than crunches. A firm, painful bulge that won't push back in could be a hernia and needs medical evaluation.
What this usually means
Most likely causes. Diastasis recti (abdominal separation) and a deep core that's still rebuilding are the common causes of a persistent midline bulge or doming, especially postpartum. Less common causes. A hernia can cause a bulge; if it's firm, painful, or won't reduce, it needs medical evaluation.
What you can try at home
Notice whether the bulge "domes" along the midline when you sit up or strain, and modify those movements. Begin breathing and deep-core and pelvic floor connection work, progressing gradually. Function — generating tension across the midline — matters more than the gap's width.
When to see a physical therapist
A pelvic-health PT can assess the separation and your core function and build a progressive plan that actually changes how your core works.
Red flags — don't wait
Seek medical care for a firm, painful bulge that won't push back in (possible hernia), severe pain, or signs of infection.
How a PT treats this
Treatment rebuilds deep core and pelvic floor coordination and progressively loads it to restore a strong, functional core.
Frequently asked questions
Sources (3)
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.