There are various causes of femoral head necrosis, but the most important and common ones are the following three major causes: hormones, alcohol and trauma, and today we will mainly talk about alcoholic femoral head necrosis caused by long-term alcohol abuse. Moderate alcohol consumption can promote blood circulation, relieve mental tension and reduce the occurrence of stress-related diseases, especially cardiovascular diseases, but if long-term, heavy alcohol abuse can be extremely harmful to our health, such as fatty liver, pancreatitis, memory loss, etc., and of course, the femoral head necrosis we are talking about today. Alcohol causes an increase in blood viscosity resulting in impaired microcirculation in the femoral head, which leads to femoral head necrosis due to ischemia. So what are the symptoms of alcoholic osteonecrosis? In the early stage, patients with alcoholic femoral head necrosis will experience pain at the root of the thigh or difficulty in crossing the legs, and the pain can radiate to the inner thigh and knee joint, which can be easily misdiagnosed as lumbar disc herniation; as the disease progresses, symptoms such as difficulty in squatting, difficulty in putting on socks and limping will gradually appear in the middle and late stages. What treatment should be taken by patients with alcoholic osteonecrosis of the femur? If a patient with alcoholic femoral head necrosis pays more attention to his or her health, the lesion can be detected early by MRI, and the progress of femoral head necrosis can be slowed down by timely abstinence from alcohol, double crutches and oral medication; if the femoral head is found to be intact on X-ray, but the femoral head has cystic changes and partial sclerosis, and the characteristic “half-moon sign” appears, the best treatment is to treat the patient. If the femoral head is found to be intact on X-ray, but there is cystic degeneration and partial sclerosis in the femoral head, with the characteristic “half-moon sign”, the best treatment at this time is medullary decompression combined with bone grafting to reduce the pressure in the femoral head and slow down the further development of femoral head necrosis. If the femoral head is found to be poorly shaped and collapsed on X-ray, the lesion is already at the end stage of the disease and any treatment to preserve the femoral head is not satisfactory. In the end, joint replacement is not an option. In order to avoid the occurrence of alcoholic femoral head necrosis, we recommend that you try to avoid the habit of long-term heavy drinking, and we recommend that the total amount of liquor does not exceed 2 taels per day for those who have been drinking for a long time and have hip pain for more than 1 month, we recommend actively seeking medical attention.