The lateral femoral cutaneous nerve is a nerve that receives sensation from the top lateral part of the thighs on each side. When it is dysfunctional because of pressure, injury, or entrapment, pain can be felt in the lateral thighs. There may also be tenderness in the groin because this is one of the locations where the nerve travels. Symptoms may include tingling, numbness, or painful stinging sensations in the front or outer parts of the thighs. The area that is painful may also be very sensitive to the touch.
A lateral femoral cutaneous nerve block is an injection of local anesthetic and an anti-inflammatory medication into the area where the nerve travels. Generally, relief may be obtained within two days to two weeks. If the patient receives a good, lasting benefit from the injection, the block may be repeated. Once relief is obtained, self-care and prevention are encouraged. This may be done by avoiding pressure in the groin area, choosing loose-fitting clothing, or wearing an abdominal binder to support the abdomen.