Heel surgery is usually about 2 weeks after discharge from the hospital to remove the stitches, the specific time to remove the stitches is decided according to the wound healing. 1. Wound healing is better: skin color is normal, no redness, no pus oozing, obvious skin lines, no pain, gauze is dry and clean. At this time, the wound can be removed 2-3 weeks after surgery. After removing the stitches, pay attention to the wound environment and keep the wound dry and clean. 2. Poor wound healing: localized redness and swelling of the wound, pus oozing out, obvious pain, dressing gauze contamination. Poor healing may be due to high blood sugar in diabetic patients, postoperative wound infection and other reasons. The time for suture removal will be prolonged in these cases. It is recommended that patients go to the hospital for review in time and choose the suture removal time according to the wound healing situation and follow the doctor’s instructions.