The time to remove stitches in diabetic patients often needs to be decided according to the wound healing, and may be 1~3 days later than normal. For non-diabetic patients, suture removal for incisions on the head, face and neck can generally be performed 4~5 days after surgery, incisions located on the extremities are generally removed 10~12 days after surgery, lower abdominal and perineal incisions are removed 6~7 days after surgery, epigastric, thoracic, back and arm incisions are removed 7~9 days after surgery, and those with reduced-tension sutures are generally removed 14 days after surgery. Since diabetic patients tend to have weakened wound healing ability, they need to extend the above time by about 1~3 days. When a diabetic patient needs to have the stitches removed, it should be determined by the healing condition of the wound and consultation with the doctor.