There is no direct link between steel nailing of the femoral head and the rate of femoral head necrosis, and there are no relevant clinical studies that prove that steel nailing of the femoral head leads to an increase in the rate of femoral head necrosis. The reason why the femoral head needs to be nailed is often related to the fracture of the femoral head, and the role of nailing is mainly to improve the stability of the fracture site, but also to help create a good healing environment for fracture healing, to a certain extent, the prevention of femoral head necrosis is also helpful. A common cause of femoral head necrosis is the destruction of the blood supply to the femoral head, which may be caused by increased extravascular pressure in the bone. When the femoral head is fractured, it may be displaced, resulting in increased extravascular pressure within the femoral head, but by driving a steel nail, the fracture site can be fixed, which not only facilitates the return of the bone to its normal physiological anatomical position, but also reduces the risk of increased extravascular pressure, which is beneficial in restoring normal blood flow to the femoral head. Another cause of femoral head necrosis is mainly related to various causes of femoral head hypoxia and bone cell death. Therefore, after steel nailing of the femoral head, attention should be paid to regular disinfection and sterilization of the surgical wound and good cleaning care of the wound site to avoid wound bleeding or infection, which may affect wound healing and normal blood flow to the femoral head. After nailing, regular review should be conducted to observe the healing of the femoral head injury site through relevant imaging examinations and to check whether there are adverse symptoms such as obstruction of blood flow to the femoral head and necrosis of the femoral head for early detection and early treatment.