Lower Belly Bulge That Won't Go Away? Here's What It Means and What to Do
Updated October 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.
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Tell us what you're dealing with and where you are. We'll send you cash-pay PTs nearby who focus on it, with their prices and first openings. You choose; we don't give medical advice.
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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.
Already seen a doctor, or have imaging? Request a match — free.
If a doctor has checked you out and physical therapy is an option, tell us where you are. We'll send you cash-pay PTs nearby who treat this, with their prices and first openings — bring your results to the first visit. You choose; we don't give medical advice.
We check two or three cash-pay PTs near you. We reply within 1 business day with next steps.
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
Often, if it domes along the midline with effort — a PT can confirm and assess function.
Sources (5)
- MedlinePlus: Diastasis recti. — NIH/MedlinePlus
- Benjamin DR, et al. Effects of exercise on diastasis of the rectus abdominis muscle in the antenatal and postnatal periods: a systematic review. Physiotherapy. 2014. — PubMed
- MedlinePlus: Hernia. — NIH/MedlinePlus
- Capoccia Giovannini S, et al. Non operative management of postpartum Diastasis Recti: a systematic review and metanalysis of randomized controlled trials. Hernia. 2026. — Hernia
- Lyons G, et al. What is the evidence for abdominal and pelvic floor muscle training to treat diastasis recti abdominis postpartum? An updated systematic review and meta-analysis of randomized clinical trials and trial sequential analysis. Hernia. 2026. — Hernia
This article is for education only and isn't medical advice. Always talk to a licensed clinician about your specific situation.