Colic nerve pain

It is more common clinically, especially after falling on the buttocks, the incidence is significantly higher in women than in men. The caudal plexus composed of 骶 5, tail 1 and part of 骶 3,4 anterior branches mostly coincides with the fibers below the paravertebral sympathetic nerve trunk. The branches are as follows: 1. Muscle branches are distributed to the levator anal muscle. 2. There are 3 to 5 small anal nerves in the sensory branch distributed in the coccyx region and perianal skin.