Round ligament pain is a brief, sharp, movement-triggered groin jab from the uterus stretching its anchors - benign and common in the second trimester. Constant, cramping, or bleeding-accompanied pain is a same-day call.
What to do
Common questions
Why do I get round ligament pain?
Round ligament pain is one of pregnancy's most recognizable sensations: a sudden sharp jab or catching pain low on one side of the belly or groin, triggered by movement - rolling over in bed, standing up, coughing, sneezing - and gone within seconds to minutes. The round ligaments anchor the uterus to the groin, and as the uterus grows fast in the second trimester, they stretch and spasm under the new load. It usually starts around weeks 14 to 27, and it is benign - uncomfortable, sometimes startling, but harmless to you and the baby. Managing it: move slower through the triggers - roll over in stages, brace your belly before a cough or sneeze by flexing your hips - rest when it fires, and try warmth on the achy side after the sharp phase passes. A maternity support belt takes load off the ligaments for women who get it daily. Gentle stretching and prenatal yoga help some women. It fades as your body adjusts, and it does not harm the pregnancy. What round ligament pain is not: it is brief and movement-triggered. Pain that is constant, severe, or cramping rhythmically, pain with vaginal bleeding, fever, burning urination, dizziness, or pain that keeps building - that is a different story and needs a same-day call to your provider, since contractions, urinary infection, and rarer complications can wear similar clothing. When in doubt, call - maternity units expect exactly that question. Pymander is a free AI doctor, 24/7 by text. Describe the pain and the trigger, and it can help you tell stretch-jab from warning.