Difficulty in healing wounds in the elderly may be caused by foreign body residue, recurrent wound infections, and diabetes. Symptoms can be relieved by surgery, medication and exercise. 1. Foreign body residue: it may be due to the presence of small stones, metal residues and other foreign bodies in the wound, foreign bodies in the tissue so that the wound can not grow normally, which can be difficult to heal the wound phenomenon. Patients should go to the hospital to do the following treatments, use saline to flush the wound, disinfect it with iodophor and take out the foreign body. 2. Repeated wound infections: This may be caused by inadequate cleaning of the wound and poor replacement of medication. Bacteria can invade the wound to make it infected, causing local tissue necrosis, pus, etc., affecting the generation of new granulation tissue, so the wound is difficult to heal. Patients can use medication, such as erythromycin, penicillin, etc., serious need to do debridement surgery. 3. Diabetes mellitus: It is mainly caused by defective insulin secretion and/or action. Due to high blood glucose content, tissue fluid spillage makes tissue adhesion decrease, making wound healing difficult. Patients can achieve relief by taking oral hypoglycemic medications or injecting insulin to control blood sugar. Appropriate activity is also an option to help control blood sugar and weight. Elderly people with difficult-to-heal wounds are advised to go to the hospital in time to have their wounds treated by a medical professional to avoid delays.