The occurrence of femoral head necrosis is completely preventable. If you pay more attention in your daily work and life, or in the treatment of certain diseases with medication, you should generally do the following: 1. Be sure to strengthen the awareness of self-protection of the hip. 2.When walking, pay attention to your feet, be careful of falls, especially in winter when walking on snow and ice to pay attention to prevent slipping and falling. 3, before sports, do a good job of hip preparation activities, feel the body warm, limbs flexible for the degree. 4.When carrying and carrying heavy objects, avoid spraining the hip and try not to do heavy work. 5, hip injuries should be treated in a timely manner, do not walk too much before the injury is healed, so as not to repeatedly damage the hip joint. 6, in the treatment of certain diseases, especially some painful diseases, try not to use or use less hormone drugs. 7, try not to develop a long-term problem of drinking a lot of alcohol.