pudendal nerve
Wikipedia Summary
The pudendal nerve is the main nerve of the perineum.: 274 It is a mixed (motor and sensory) nerve and also conveys sympathetic autonomic fibers. It carries sensation from the external genitalia of both sexes and the skin around the anus and perineum, as well as the motor supply to various pelvic muscles, including the male or female external urethral sphincter and the external anal sphincter.
If damaged, most commonly by childbirth, loss of sensation or fecal incontinence may result...
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