Necrosis of the femoral head, stage 2~3, can be slowed down by removing the causes of the disease and paying attention to daily habits, but it cannot be cured, and often needs to be treated by replacing the artificial hip joint. Necrosis of the femoral head is caused by ischemic necrosis of the femoral head due to a variety of reasons (such as long-term use of hormones, long-term heavy drinking, etc.), necrosis of the femoral head is not reversible, and can only be removed by removing the cause of the disease and pay attention to daily habits to slow down the progress of the disease. It can only be slowed down by removing the cause of the disease and paying attention to daily living habits, mainly by reducing the use of the hip joint and removing risk factors such as alcohol consumption. If the disease continues to progress and seriously affects the ability to walk. It can also be treated by having an artificial hip replacement.