The way to defecate after a femur fracture varies according to the time after the fracture. In the early stage of a femur fracture, when the fracture is not yet stable or when the wound is still painful after surgery, you usually have to relieve the stool in bed only, usually with a potty in the middle of the buttocks. However, if the wound is completely healed and the fracture is not so painful, you can use some kind of toilet or sit on top of the toilet to defecate. In addition, when the fracture is completely healed, usually in about 8-12 weeks, the function of the knee joint, especially the function of bending, is completely back to normal, you can choose to sit on the toilet or squat toilet to defecate.