Hip pain may be related to traumatic fracture, osteoarthritis or necrosis of the femoral head, etc. Hip X-ray, CT or MRI examination is needed to make a clear diagnosis. 1. Hip fracture: when trauma causes hip fracture such as femoral neck fracture, acetabular fracture, etc., it is the best to do hip X-ray and CT examination at this time, which can clarify whether the trauma causes fracture or not, as well as to understand the specific conditions of fracture, so as to guide the next step of the treatment program. 2. Hip arthritis: osteoarthritis of the hip joint is common among middle-aged and old people, which is mainly characterized by progressive aggravation of hip joint pain without any obvious cause, and slightly relieved after rest. At this time, X-ray examination of the hip joint is the best, which can understand the situation of osteoarthritis. 3. Necrosis of femoral head: Femoral neck fracture, long-term hormone use or alcohol consumption can cause necrosis of femoral head. MRI examination of the hip joint can clarify the situation of the femoral head, especially when diagnosing early necrosis of the femoral head, which is very valuable. It is recommended that the patient should consult the doctor in time, and the doctor should choose the appropriate examination program after physical examination.