It is usually possible to lie on your side after internal fixation of femoral neck fractures. Internal fixation of femoral neck fractures is a closed reduction hollow nail procedure, often indicated in younger age groups. It is possible to lie on your side after internal fixation of a fracture of the neck of the femur with hollow nails. It is better to put a pad between the legs to spread the legs (e.g. pillow, quilt, etc.) when lying on the side, so as to avoid excessive internal rotation of the affected limb to prevent dislocation. After the surgery, bed rest is required, and weight-bearing on the ground is prohibited for 2~3 months. It is also necessary to prevent the affected limb from too much internal retraction and internal rotation to avoid affecting the blood supply of the femoral head and prevent dislocation. However, during the bed rest period, it is also necessary to carry out rehabilitation exercises under the guidance of the doctor. Rehabilitation exercises are mainly to prevent complications such as lower limb venous thrombosis and muscle atrophy.