In clinical practice, the root of the thigh is the hip joint, which is composed of the acetabulum and the femoral head. The human hip joint area carries more weight and has a greater range of motion, so it is easy to cause injury. For example, if a patient’s hip has long-term chronic strain, strain injury or acute trauma, it is easy to cause damage to the muscles and soft tissues of the hip, or to develop synovitis and bursitis in the hip joint, and in some cases, it is easy to develop diseases such as femoral head necrosis. In addition, the poor blood circulation in the femoral head area can easily lead to femoral neck fracture after being subjected to external force. Patients with femoral neck fracture will feel pain in the hip, and will not be able to bear weight, and the function of the hip will be limited, and the lower limb will be shortened. An x-ray of the hip can be taken to make a clear diagnosis.