Aortobifemoral bypass surgery is used to bypass a narrowed or blocked part of the large blood vessels in the abdomen and groin.

To bypass the diseased part of the blood vessel, blood is redirected through a graft. The graft is made of human-made material. This graft is sewn above and below the diseased vessel so that blood flows through the graft and around the narrowed or blocked part. The graft looks like an upside-down Y shape. The single end of the Y is sewn on the aorta. The two split ends of the Y are sewn below the blocked or narrowed areas of the femoral arteries.