Round ligament pain generally refers to a brief, sharp, stabbing pain or a longer-lasting dull ache that pregnant women commonly feel in the lower abdomen or groin, starting in the second trimester.
You may feel round ligament pain as a short jabbing sensation if you suddenly change position, such as when you're getting out of bed or out of a chair or when you cough, roll over in bed, or get out of the bathtub. You may feel it as a dull ache after a particularly active day — when you've been walking a lot or doing some other physical activity.
The round ligaments surround your uterus in your pelvis. As your uterus grows during pregnancy, the ligaments stretch and thicken to accommodate and support it. These changes can occasionally cause pain on one or both sides of your abdomen.
You may feel the pain starting from deep inside your groin, moving upward and outward on either side to the top of your hips. The pain is internal,
at 5:34 PM on Mar. 22, 2011