If you suspect a lesion in the femoral head area, you should have a physician’s examination to determine approximately what the disease is based on the medical history and the associated positive signs, and then decide what tests to do. In the general direction, there are X-ray examinations, CT, MRI, and even color ultrasound examinations. Different diseases require different tests to help determine. For example, in the case of congenital hip dislocation in pediatric patients, radiographs and ultrasound can be done, and in the case of suspected early femoral head necrosis, MRI is needed to determine whether there is a fracture. Some fractures are more insidious, so in addition to radiographs, a CT of the area is needed to further characterize the fracture. If there is a suspicion of joint effusion, bursitis or other lesions, MRI is done directly.