After femoral neck fracture surgery, it takes more than 6 to 8 weeks to do straight leg raising. Although the fracture broken end has been fixed firmly enough after femoral neck fracture surgery, the strength of the fracture broken end is still not enough, because the femoral neck part, any slight movement of the lower limb will be subjected to a greater stress, so at this time, the patient can’t do the lower limb leg lifting activities. During the treatment period, the patient needs to rest in bed for a long time, and only after recovering to a certain period of time can the patient perform the corresponding functional exercises. Clinically, after 6 to 8 weeks, most of the patients have reached the clinical healing standard of the fracture, and only at this time can they do straight leg lifting or wheelchair activities. After the femoral neck fracture surgery, must follow the doctor’s instructions for care and exercise, do not take the initiative blindly activity, in order to avoid serious consequences.