Forty days after the heel bone operation, the bottom of the heel still hurts, which may be caused by the more serious fracture damage, edema compression during the recovery period, soft tissue adhesion and other reasons. 1. Fracture damage: heel bone fracture patients if the damage is more serious, forty days after surgery, the fracture damage site is still not healed, causing pain symptoms is normal, such as comminuted fracture of the heel bone, after the injury of the free bone is more, through the surgical internal fixation, the fracture healing needs a longer period of time after the healing. 2. Rehabilitation edema: forty days after the heel fracture surgery, simple rehabilitation training can be carried out, but still can not be fully weight-bearing, rehabilitation training process will occur in the fracture site of edema, compression of the surrounding soft tissues and peripheral nerves, there may also be pain symptoms. 3. Soft tissue adhesion: After heel fracture surgery, due to trauma, surgery and postoperative braking, the postoperative soft tissue adhesion around the injury, muscle atrophy, etc., after the activity due to adhesion, atrophic parts of the tugging and stimulation, pain symptoms may also occur. If the pain symptoms are severe, or the symptoms do not improve, the patient should go to the hospital in time for treatment.