For the holidays, new friends and old friends get together, it is inevitable to drink together on two cups. Occasionally drink a few cups is not a big problem, but if long-term drinking that may be careful, alcohol will not only cause stomach, liver, brain and cardiovascular damage, but also cause necrosis of the femoral head. China’s femoral head necrosis patients nearly 5 million, nearly one-third of which is caused by alcohol consumption. The age of people with alcoholic femoral head necrosis is most common between 30 and 50 years old, which is consistent with the age group of people who drink alcohol. Moderate, no more than 30 ml A person who drinks more than 200 grams (4 taels) of alcohol per day for 5-10 years is very likely to develop femoral head necrosis, so alcohol consumption must be moderate. However, there is no uniform statement on how much alcohol is considered moderate per day. Alcoholic beverages come in a variety of varieties and contain different concentrations of alcohol. In addition, the tolerance level of alcohol is different for each person, such as age, genetics, gender, weight, etc. will affect the amount of alcohol. At present, it is generally accepted that the daily intake of pure alcohol should not exceed 30 ml (equivalent to no more than 50 grams of 52 degree white wine). Necrosis can occur even if you are not drunk Drinking alcohol, it is not necessary to be drunk to cause femoral head necrosis. If you drink a lot of alcohol every day but never get drunk, you can also suffer from femoral head necrosis. Some people drink for their whole life without necrosis, while others drink very little but have necrosis, which is the problem of individual differences mentioned above. But why there is a difference, the current medical research is not yet able to give a clear answer. The mechanism by which alcohol consumption causes femoral head necrosis is not fully understood. One of the most important causes is impaired blood supply to the femoral head. For example, long-term alcohol consumption can cause disorders of lipid metabolism, resulting in increased blood lipids and then increased blood viscosity, slowing down blood flow and making it easy for blood to clot and block small blood vessels in the femoral head; disorders of lipid metabolism also lead to atherosclerosis of small arteries and damage to the intima, which then leads to thrombosis in the damaged blood vessels, resulting in infarction of the blood supply to the femoral head; if the fat accumulation in the bone is around the blood vessels in the bone If the fat accumulation is around the blood vessels in the bone, the accumulated fat will compress the blood vessels, which will also cause the blood flow to the bone to be impaired. Whatever the cause of the impaired blood supply to the femoral head, it can lead to femoral head necrosis. Because the blood vessels that feed the femoral head are unique, there are only a few of them, and there is no “mutual support” channel between them – this is the reason for “blockage”. The femoral head can also be “poisoned,” meaning that the bone cells are degenerated by the fat that accumulates inside the cells, or destroyed by alcohol and its metabolites, resulting in cell death. Most patients with osteonecrosis of the femoral head are already at an advanced stage when the disease is detected, and most of them have bilateral onset. The early symptoms of the disease are not obvious and are only mild pain at the root of the thigh or hip. People who have been drinking alcohol for a long time should be highly suspicious of femoral head necrosis if they find hip pain, and go to a regular hospital early to take x-ray films and do MRI examination. In short, during the holiday season, there are many banquets and drinking should be in moderation.