What is a groin hernia?

A hernia is a defect (hole) in the abdominal muscles through which the abdominal contents (usually fat but sometimes intestines or other abdominal structures) can protrude. These occur at natural points of weakness in the muscles of the abdominal wall, usually in the inguinal (common), or femoral (less common) regions of the groin.

The term inguinal and femoral simply refer to the position in the groin where these hernias occur.

They can occur on one or both sides (bilateral) of the groin.