Thigh numbness, pain in patients, may be due to the existence of lumbar spine-related lesions, peripheral nerves by the cardinal pressure, etc., as follows: First, lumbar spine-related lesions: some patients will be due to lumbar spine-related lesions, and then appeared such a symptom, such as the patient appeared to the internal occupation of the spinal canal, or the position of the lumbar disc herniation class lesion is relatively high, may produce for the lumbar spine nerve root compression, and then the thigh in the The thigh numbness and pain and a series of symptoms. Second, peripheral nerve compression: the patient will be due to peripheral nerve compression, and then appear such symptoms, such as some patients wear clothing with a belt, the belt is too tight, it may be easy to cause the lateral femoral nerve compression, in the lateral thigh to appear the above symptoms.