Ischemic necrosis of the lateral femoral head can be treated conservatively if the scope of necrosis is small, and requires surgery if the scope of necrosis is large. 1. Conservative treatment: It is suitable for patients with ischemic necrosis of the femoral head with a small extent and the femoral head has not collapsed. Conservative treatment includes quitting smoking and drinking, reducing joint weight-bearing, suggesting walking with the help of crutches, and stopping the use of hormone drugs, and the medication includes anticoagulant and vasodilator drugs, such as low molecular heparin sodium, prostaglandins and so on, and the application of drugs that inhibit osteoclasticity and increase osteogenesis, such as Alendronate sodium, Medopa and so on. 2. Surgery: It is suitable for patients with large scope of ischemic necrosis of femoral head, fast progress or poor effect of conservative treatment. Surgery includes hip preservation surgery and hip replacement surgery, if the joint surface is not collapsed, and there is obvious hip pain or intermittent claudication, hip preservation surgery such as decompression and bone grafting surgery can be performed, and if the head of the femur is collapsed, artificial hip replacement surgery can be taken. In the case of ischemic necrosis of the lateral femoral head, it is necessary to go to the hospital to assess the severity of the lesion and carry out targeted treatment under the guidance of the doctor.