The patient has tingling pain at the root of the thigh. If the patient has this performance in the elderly after a fall, most of them have a femoral neck fracture, and an X-ray of the hip can be taken to be able to make a clear diagnosis. In addition, if a patient suffers from femoral head necrosis, in the early stage, due to local ischemic changes, it will also produce pain in the hip, and the pain is obviously aggravated when the lower limb is doing external rotation movements. As the hip joint is a large joint, it needs frequent weight-bearing activities or cold, and is also prone to hip chondritis and local fasciitis, bursitis and other diseases, which will produce local pain when the hip moves. Therefore, a clear diagnosis should be made after this phenomenon occurs, and then correct treatment should be taken to relieve the pain of the patient.