The causes of femoral head necrosis are on the one hand non-traumatic, such as long-term alcoholism; long-term application of large amounts of glucocorticoids; in addition, hypertension, diabetes mellitus, arteriosclerosis, etc., which also tend to cause femoral head necrosis. On the other hand, it is traumatic, due to the fracture of the femoral head or femoral neck after hip trauma, which can cause local ischemic necrosis of the femoral head. Femoral head necrosis can occur at any age, but most often at the age of 31-60. At first, it mostly manifests as hidden pain or dull pain in the hip joint or its surrounding joints, which is aggravated after weight-bearing activities, and further development can lead to dysfunction of the hip joint, which seriously affects the quality of life and labor ability of patients and can also lead to lifelong disability. In fact, in ordinary life, work, we can pay attention to the following recommendations, is effective to avoid, reduce the occurrence of osteonecrosis of the femoral head. Prevention of femoral head necrosis 1, strengthen the awareness of self-protection of the hip When walking, you should pay attention to your feet, avoid falling, and if you slip, try not to let your hip land. Prepare for sports and do not do heavy physical work to avoid sprains or contusions of the hip. Especially after the injury, seek medical attention in time and do not delay the condition. Do not move too much when the injury is not completely healed, so as not to repeatedly damage the hip joint. 2, quit drinking is really important Should change the bad habits of long-term alcohol abuse or quit drinking, get out of the contact environment of pathogenic factors, remove the chemical toxicity of alcohol and prevent tissue absorption. Do not eat chili peppers, pay attention to increase the intake of calcium, eat fresh vegetables and fruits, more sunshine, prevent weight-bearing, regular activities, etc. have a preventive effect on femoral head necrosis. 3, hormone drugs are not used indiscriminately Do not take hormone drugs indiscriminately. If you have to take hormone drugs because of rheumatism, rheumatoid, skin diseases and other diseases, you should take some vitamin D, calcium and vasodilator drugs, and you should follow the doctor’s instructions. 4.Reasonable treatment needs to be cautious. Patients with femoral neck fracture advocate early non-invasive repositioning and reasonable internal fixation devices and methods. Since most of the patients with femoral neck fractures are elderly patients, they should be given a comprehensive examination to facilitate the development of a recovery plan according to their individual conditions. If the hip is injured, it should be treated promptly and should not be walked too much before the disease or injury is healed, so as not to repeatedly damage the hip joint. 5, early detection, early treatment If you are already in your 50s, have a long-term habit of drinking a lot of alcohol and are relatively fat, if you then have discomfort in action, such as pain in the two hip joints or the back of the hip and groin area, you must be careful and go to the hospital for CT or MRI examination as soon as possible to discover some subtle changes in the bone in time.