1. Strengthen fastness of transcervical fracture, meanwhile bone grafting should involve bones with vessel to promote transcervical recovery, femoral head blood circulation and thus to prevent bone necrosis. Regular view should be maintained after operation. Beside, take orally Chinese traditional medicine and calcium properly to stimulate blood circulation and prevent demoral head ischemia.

2. Principle of "short and proper" should be followed if hormone is used for treatment. And also take drugs of blood vessels dilation, vitamin D, calcium etc. Never misuse hormone medicines on one's own responsibility without doctors' advice.

3. Get rid of bad habits of drinking, keep away from old environment causing disease, clean chemical poisoning of alcohol to prevent absorption by body tissue.

4. For those professional laborers such as deep-sea diver, pilot, worker under high-pressure environment, working protection and condition should be improved. If diagnosis of any disease, they should shift to other positions and be taken to hospital soon.

5. On diet, people should: eat less spicy foods, do not over drink, do not eat foods with hormone, and increase the amount of calcium taken, eat more fresh vegetables and fruits, take more sunlight, avoid being under burden, keep regular exercise etc. All these methods mentioned have effect to prevent femoral head necrosis.