It branches off the internal iliac artery, and provides blood to the external genitalia.

It arises from the anterior division of internal iliac artery.

It exits the pelvic cavity through the greater sciatic foramen, inferior to the piriformis muscle, to enter the gluteal region.

It then curves around the sacrospinous ligament to enter the perineum through the lesser sciatic foramen.

[1] The internal pudendal artery supplies blood to the external genitalia.