He thought that the pain was caused by cold and did not pay attention to it, but after a week the pain was still not relieved, so he went to a hospital for treatment. The doctor gave him some medication and told him to rest more. A month later, Mr. Zhang’s knee pain did not improve, but progressively worsened, and gradually developed pain in the front side of the right thigh and groin, and the pain was unbearable after a few steps, which seriously affected his work and normal life. “Femoral head necrosis”, timely treatment using a combination of traditional Chinese and Western medicine. 1.What is femoral head necrosis? Femoral head necrosis, fully known as aseptic necrosis of the femoral head, or ischemic necrosis of the femoral head, is a lesion caused by localized poor blood flow to the femoral head due to a variety of reasons, which leads to further ischemia of bone cells, necrosis, fracture of bone trabeculae and collapse of the femoral head. The disease starts with vague or dull pain in the hip joint or its surrounding joints, such as pain in the groin and knee joint, and the pain is obvious when standing or walking for a long time, and mild claudication occurs. Further development can lead to increased hip pain, claudication, hip flexion and external rotation dysfunction, which seriously affects the patient’s quality of life and labor ability. 2.Why does drinking alcohol cause femoral head necrosis? It is believed that excessive drinking can inhibit fat metabolism, and these fats are deposited on the walls of blood vessels, which can easily cause blood vessel blockage, and the blood vessels supplying the femoral head are very thin and few in number, further increasing the risk of blockage. From the perspective of Chinese medicine, poor blood flow leads to obstruction of qi flow, imbalance of camping and guarding, closure and lack of nourishment for the bone, which should be classified as qi stagnation and blood stasis. In addition, deficiency of the liver and kidney can also cause necrosis of the femoral head. The kidney is deficient and cannot master the bone, the marrow is displaced, the liver is deficient and cannot collect blood, the camp-body is out of balance, the qi and blood cannot warm and moisten the tendons and bones, resulting in this disease. 3, prevention and care (1) life should pay attention to less alcohol, preferably no alcohol. (2) Once the disease occurs, early diagnosis, early treatment, do not delay the disease. (3) Reduce weight-bearing after the disease, less standing, less walking, to reduce the pressure on the femoral head. (4) Appropriate functional exercise such as doing empty pedal bicycle movement in bed and practicing hip forward flexion, abduction and adduction to enhance muscle strength.