Four months after femoral neck fracture, it has basically healed completely, and in most cases, it is possible to go down to the ground with partial or complete weight-bearing by holding a single crutch, but it is not possible to do strenuous activities or run and jump, and avoid sitting in a cross-legged position as much as possible, and it is necessary to review the film before going down to the ground to understand the fracture healing situation. Four months after the fracture, although you can go to the ground, but the lower limbs still need to carry out functional exercises, mainly thigh muscle strength exercise and functional activities of the hip joint, such as straight leg raising in bed and holding something for squatting activities, gradually recover to be able to walk normally. Due to the femoral neck fracture, ischemic femoral head necrosis may occur in the later stage. After the femoral neck fracture, it is necessary to review the film regularly, and it is recommended to review the X-ray of the hip joint every six months to clarify whether there is femoral head necrosis and internal fixation.