The femoral ring is the opening at the proximal, abdominal end of the femoral canal,^[1] and represents the (superiorly directed/oriented^[1]) base of the conically-shaped femoral canal.^[1] The femoral ring is oval-shaped,^[1] with its long diameter being directed transversely and measuring about 1.25 cm.^[1] The opening of the femoral ring is filled in by extraperitoneal fat, forming the femoral septum.^[1]

Part of the intestine can sometimes pass through the femoral ring into the femoral canal causing a femoral hernia.

The femoral ring is bounded as follows:^[2]

• anteriorly by the inguinal ligament.
• posteriorly by the pectineal ligament.
• medially by the crescentic base of the lacunar ligament.
• laterally by the fibrous septum on the medial side of the femoral vein.

• Front of abdomen, showing surface markings for arteries and inguinal canal.

• Femoral canal
• Femoral hernia
• Inguinal canal