Necrosis of the femoral head drilling decompression refers to the femoral head medullary decompression surgery, how many years it can be preserved is uncertain, and it is related to the patient’s specific condition and postoperative lifestyle habits. In the early stage of femoral head necrosis, hip preservation surgery can be chosen to perform core decompression surgery, which mainly reduces the pressure in the femoral head marrow cavity through drilling to alleviate pain. However, this kind of surgery only relieves the symptoms and delays the time of hip replacement, and can’t cure necrosis of the femoral head fundamentally. If the patient pays attention to rest and avoids overloading the femoral head, it can maximize the protection of the hip joint, slow down the process of femoral head necrosis and delay the time of hip replacement. However, if the patient does not pay attention to this, or if the patient weighs more, walks more and puts more weight on the femoral head, the disease may develop rapidly, accelerating the degree of necrosis of the femoral head, and the hip replacement may need to be carried out earlier. After drilling decompression surgery for necrosis of the femoral head, the patient should actively cooperate with the doctor’s treatment, walk with crutches, reduce the weight of the affected limb, rest more, ensure enough sleep, and also limit the intake of alcohol, weight control, blood lipid control, etc. The patient should also take care of the weight of the femoral head, so as to reduce the weight of the affected limb.