Post-operative heel bone refers to the postoperative heel bone fracture, the reasons for walking instep pain include sports injury, injury has not yet recovered, postoperative infection and so on. 1. Sports injury: due to long time walking or poorly fitted shoes, repeated mechanical friction on the instep can cause pain on the instep, which can be relieved by resting. 2. Injuries that have not yet recovered: Because it takes a certain amount of time to recover from surgery, if the fracture has not yet healed completely or the soft tissue injuries such as muscle and tendon injuries have not yet recovered, and the injured part is stimulated when walking, then the pain in the instep may also occur. 3. Postoperative infection: If the wound is not well taken care of after the surgery, infection occurs, and the wound is stimulated when walking, it can also cause dorsal pain, which is mostly accompanied by local redness, swelling and fever. Causes of heel fracture walking back pain after surgery is more reasons, may also be related to traumatic arthritis, soft tissue adhesion, if the symptoms continue to not relieve, it is recommended to consult a doctor in a timely manner, to clarify the cause of the disease, for targeted treatment.