Lateral thigh pain can be caused by the following reasons: first, hip impingement syndrome, when the femoral neck of the hip joint and the acetabulum impingement, or the small thick rung and the sciatic tuberosity impingement, there can be radiating pain on the outside of the thigh or the inner side of the hip joint, this time, we need to check the X-ray film of the hip joint, nuclear magnetic resonance to diagnose and early treatment. Second, bursitis, when there is chronic inflammation of the bursa of the outer thigh, there can also be pain in the root of the outer thigh, and then the X-ray film of the hip joint should be taken to exclude other diseases for diagnosis. Third, snapping hip, snapping hip can lead to pain in the lateral thigh root, which is more obvious when walking and can be accompanied by snapping, then we should check the body early and check the X-ray of the hip joint for diagnosis and treatment.