The reasons for the difficulty of wound healing are mainly related to the patient’s combination of obesity, diabetes, poor nutrition, heavy infection, poor local blood circulation, long-term bedridden lack of activity, and intraoperative application of high-frequency electrocautery to cause adipocyte degeneration and necrosis. Generally, the wound can be healed after active dressing change and treatment of primary disease. However, the healing time varies depending on the size of the wound and the exudate condition. Different treatment programs need to be developed depending on the wound healing and the amount of exudate. The wound can be healed by removing part or all of the sutures, leaving drainage strips to smooth the drainage, applying anti-inflammatory drugs to prevent infection if necessary, and promoting the growth of granulation tissue.