Anococcygeal_nerve
Anococcygeal nerve
Nerve in the pelvis
The anococcygeal nerve is a sensory nerve of the pelvis[1] that arises from the coccygeal plexus.[2] It pierces the coccygeus muscle and the sacrotuberous ligament to supply a small area of skin between the coccyx and anus,[3] as well as the sacrococcygeal joint.[citation needed] The number of anococcygeal nerves varies between one and three.[4]