Inferior Epigastric Artery

The Inferior Epigastric artery is a significant landmark. It arises from the external iliac at the midinguinal point. It raises the peritoneum as the lateral umbilical fold. It lies medial to the deep inguinal ring. It is the lateral boundary of the inguinal triangle.

The inferior epigastric artery is the source of the obturator artery in 35% of cases. This abnormal origin for the obturator artery is a nuisance, and potentially fatal if nicked during femoral herniorrhaphy.