Theoretically, all non-collapsed femoral head necrosis can be treated with herbal medicine alone, but for those who are about to collapse or have already collapsed, they must be treated with surgery in a timely manner. Therefore, for patients who have not yet collapsed, it is necessary to ask experienced doctors to carefully assess the possibility of collapse and the approximate time of collapse using scientific methods, so as to avoid blindly applying Chinese medicine regardless of whether collapse has occurred or not, thus losing the ideal opportunity for hip preservation treatment. Even for femoral head necrosis with a low risk of collapse, it is still necessary to closely observe the changes in the condition during the application of Chinese medicine treatment, and once there are signs of collapse, it is necessary to timely cooperate with surgical treatment to avoid losing the best time for hip preservation treatment. The basis of differentiation and typing includes: etiology, underlying disease, systemic and local symptoms, tongue, pulse, etc.; 2. Once, in time to understand the repair of femoral head necrosis, if necessary, adjust the treatment plan; 3, if necessary, with the affected limb to avoid or reduce weight bearing, the purpose is to reduce the stress on the femoral head, in order to facilitate the repair of femoral head necrosis, to prevent collapse, the methods are to support double crutches, walkers, wheelchairs, bed, etc. Generally, if the patient does not have any pain, bed rest and double crutches are not needed.