After surgical treatment of femoral head necrosis, reasonable and healthy diet is particularly important. Experts are very concerned about the recovery of patients after operation. Experts say that patients with femoral head necrosis lose too much blood after surgery, and staying in bed for too long will lead to blood loss. Therefore, after the operation of patients with femoral head necrosis, family members can prepare some comments on appropriate amount of calcium and phosphorus, so that patients can fully absorb the nutrition in food, which is of great help to the recovery of the body. At the same time, dairy products also contain protein, lactose and other substances. Experts suggest that patients drink two cups (about 480 ml) of milk every day to achieve the purpose of daily calcium supplementation. In addition, in order for patients to better absorb calcium in dairy products, they should bask in the sun for about an hour every day, which is very helpful for calcium absorption. Because surgery is very harmful to patients, family members can cook some bone soup, which can not only supplement calcium, but also supplement nutrition for patients and keep fit.