Posterior femoral cutaneous nerve

The posterior femoral cutaneous nerve innervates along the back side of the leg and thigh area, as well as to the perineum skin. It is a small sciatic nerve that originates partially from the dorsal and ventral divisions of the nerves in the sacrum. It exits the pelvic region via the greater sciatic foramen. From there, it traverses below the gluteus maximus and above the elongated top of the biceps femoris, finally entering the deep fascia. It is called the cutaneous nerve because all its branches pertain to the skin with cutaneous characteristics. These branches are spread in the skin of the perineum, the gluteal area, and the posterior parts of the leg and thigh. The branches in the gluteal area are usually four in number, and cover the skin around the lateral and lower portions of the gluteus maximus muscle. The posterior femoral cutaneous nerve includes a number of filaments that spread out from both sides and get distributed over the posterior part of the leg and thigh.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Posterior femoral cutaneous nerve

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