Necrosis of the femoral head is caused by abnormal blood supply to the femoral head due to various reasons, which leads to the lack of oxygen to the femoral head and the death of bone cells, so necrosis of the femoral head cannot be cured by itself. Therefore, necrosis of the femoral head cannot be cured by itself. It needs timely medical treatment, non-surgical treatment or surgical treatment. There are two types of causes of femoral head necrosis, namely, traumatic factors, such as bone fracture; and non-traumatic factors, such as alcoholism, adrenal glucocorticoids and so on. For patients in the early stage of osteonecrosis of the femoral head caused by non-traumatic factors, non-surgical treatment is usually adopted, such as drug treatment, physical therapy, rehabilitation training, etc., and daily attention should be paid to the diseased side of the body to avoid weight-bearing, and it is best to use crutches. Patients with traumatic factors or non-traumatic advanced stage of necrosis of the femoral head are recommended to adopt surgical treatment, and common surgical methods include medullary decompression, arthroplasty and so on. The treatment of necrosis of the femoral head should be decided according to the specific situation of the patient, and the patient should consult the doctor in time and follow the doctor’s instructions.