The pros of femoral head replacement are pain relief, restoration of joint mobility and short recovery time. The disadvantages are high cost of surgery, less service life and easy to be infected. 1. Pros: femoral head replacement can make patients say goodbye to pain temporarily, and basically no pain for a long period of time after the operation. Femoral head replacement can restore the stability of the joints and relieve local mobility disorders. The operation time is short, the recovery time is fast, and the limp can be improved. 2. Disadvantages: The actual service life of femoral head replacement is short. Due to the limitation of medical level, the artificial joint can only be used for 7~8 years or 5~6 years in general. If there is any deviation in the position of femoral head replacement, it is easy to be infected and damage the nerves. The cost of replacement surgery is high, as the manufacture of artificial joints is complicated, the surgery is difficult and the cost of surgery is high. The decision to undergo femoral head replacement should be made after careful consideration, and the prognosis should be improved with active cooperation after surgery.