Whether the femoral head necrosis can be treated with drugs needs to be considered according to the degree of disease development, for the more serious femoral head necrosis drug treatment is not ideal. For those without obvious clinical symptoms, necrosis located in non-weight-bearing area, necrosis area <15% can be closely observed, and the use of anticoagulation combined with vasodilator drugs, such as prostaglandin, warfarin and so on. Avoid weight bearing and follow up regularly. Those with clinical symptoms, necrosis located in weight-bearing area, and necrotic area>30% should be actively treated and assessed for hemodynamics. According to the hemodynamic performance, necrosis location, can be combined with the application of medullary core decompression and then with drug treatment. If the femoral head collapses more seriously, there is advanced arterial occlusion, and there is serious loss of joint function or more than moderate pain, artificial joint replacement should be chosen. If only drug treatment, at this time the disease can not be controlled, will only further lead to disease aggravation. Therefore, the use of drug treatment for femoral head necrosis needs to be considered according to the condition.