In plain words
Doming is a visible rise along the middle of the belly. It can look like a ridge or a cone. It usually shows when a mother sits up, rolls, or strains, such as lifting or coughing. The rise happens when pressure inside the belly pushes the midline tissue outward. This is most often seen with , when the gap between the belly muscles has widened. Doming is a sign of how the core is working, not a verdict on a mother's body. It can soften or change over time. A firm, painful, or growing bulge that does not go down needs a same-day call to a provider, because a hernia can look similar. Physical therapists who work with pregnancy and postpartum core can show ways to move that reduce strain.
The deeper version
Doming or coning represents displacing a lax anteriorly during trunk flexion or Valsalva. It is the visible sign of under load. Lee and Hodges (Journal of Orthopaedic and Sports Physical Therapy, 2016) observed linea alba behavior during a curl-up in women with diastasis and reported that the midline changes shape with abdominal pressure, supporting a mechanical rather than only structural explanation. Doming must be distinguished from umbilical or epigastric hernia, which requires examination and sometimes imaging. Benjamin and colleagues (Physiotherapy, 2014) reviewed exercise effects on the gap. Controversy concerns whether doming predicts functional problems and whether load management, rather than gap closure, is the more useful target.
Where it comes up
What mothers here say about doming
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Sources
- Lee D, Hodges PW — Behavior of the linea alba during a curl-up task in diastasis rectus abdominis: an observational study. Journal of Orthopaedic and Sports Physical Therapy, 2016
- Benjamin DR, van de Water ATM, Peiris CL — Effects of exercise on diastasis of the rectus abdominis muscle in the antenatal and postnatal periods: a systematic review. Physiotherapy, 2014