According to the statistics of nearly 200 cases of patients. Drinking half a kilogram of liquor every day for about 10 years may lead to femoral head necrosis. Recently, some young and middle-aged patients drink too much alcohol frequently for social functions, and femoral head necrosis occurs in 5-6 years, which is related to individual factors. Our northeast region, Shandong, Henan and Taiwan, where there are many drinkers and high alcohol content, are the areas with high incidence of femoral head necrosis.