Femoral head necrosis, fully known as ischemic necrosis of the femoral head, is a common and difficult to treat disease in orthopedics. The common causes of femoral head necrosis are hip trauma (such as femoral neck fracture, etc.), heavy hormone consumption, and heavy alcohol consumption. The pathogenesis of femoral head necrosis is the reduction or interruption of blood supply to the femoral head. Once the small blood vessels are blocked, the femoral head will not receive normal nutrition and the bone cells will slowly die. The necrotic bone tissue will become loose and brittle, which will lead to the collapse of the femoral head and cause the dysfunction of the hip joint. The main symptoms of femoral head necrosis are: pain at the root of the thigh, reduced rotational movement of the hip joint, shortening of the affected limb, and limping. For the diagnosis of femoral head necrosis, in addition to the physical examination conducted by the doctor, imaging examinations are also essential, mainly including X-ray, CT, MRI and bone scan. MRI is of high value for early diagnosis of femoral head necrosis. Bone scan can show the extent of necrosis. The treatment of femoral head necrosis is divided into two major aspects: conservative treatment and surgical treatment. The conservative treatment of femoral head necrosis includes: 1, taking non-steroidal anti-inflammatory drugs, which can relieve pain, but taking drugs for a long time will hurt the stomach. 2, calcium metabolism regulating drugs, theoretically said to inhibit bone destruction, delay the collapse of the femoral head, but the actual results are very little. 3.Chinese herbal medicine that activates blood circulation and resolves blood stasis, which is effective for early stage patients, but not as magical as false advertisements. 4, vasodilator drugs, which can improve local blood circulation. 5.Physical therapy, which is also helpful to relieve pain and promote bone repair. Femoral head necrosis is a long-term slow progressive disease. Once the femoral head collapses and enters the third stage, the necrosis has become irreversible, and it is impossible for any drug, including herbal medicine, to revive the necrotic femoral head. The surgical treatment of femoral head necrosis is subject to different choices according to the stage of necrosis. For patients in the first and second stages, surgeries to preserve the femoral head such as medullary core decompression and decompression bone grafting can be chosen. For patients in the third and fourth stages and a few elderly patients in the second stage, artificial joint replacement should be chosen. Artificial hip arthroplasty has definite curative effect on advanced femoral head necrosis and can be divided into two surgical methods: one is hemi-arthroplasty, or artificial femoral head replacement, which means replacing the necrotic femoral head with an artificial femoral head prosthesis. Because of its short service life, it is currently only suitable for some patients who are elderly or in poor physical condition and are expected to have a short survival period. The other is total hip arthroplasty, in which the entire hip joint is replaced with an artificial prosthesis, which is effective and is a routine procedure for the treatment of femoral head necrosis. Dr. Mi Zhongxiang, chief physician of the Department of Orthopedics of Gansu Provincial Hospital of Traditional Chinese Medicine, has accumulated a lot of clinical experience in the surgical treatment of femoral head necrosis. He is skilled in surgical techniques such as drilling decompression, decompression bone grafting, hemi hip replacement and total hip replacement, and has satisfactory results in follow-up patients.