Failure to heal wounds completely after surgery may be caused by malnutrition, wound infection, decreased resistance, etc. Specific treatment options need to be chosen according to the cause of the disease. 1. Nutritional deficiencies: after surgery, diet will be affected to a certain extent, and when there is a lack of nutrients in the organism, it may lead to wounds not healing completely. Appropriate supplementation of high-protein foods and vitamin-rich fruits and vegetables can, to a certain extent, provide the body with the nutrients needed to promote wound healing. 2. Wound infection: If the postoperative recovery is poor and the wound is infected after the surgery, the wound will not heal completely. You can use saline, iodine, etc. to clean the wound with the help of a professional doctor, and choose to use cefuroxime capsules, amoxicillin capsules, tetracycline tablets and other antibiotic drugs for treatment as prescribed by the doctor. 3. Decrease in resistance: After surgery, the body’s resistance will be abnormally low, and the ability to recover will also decline, resulting in the symptom that the wound can not be completely healed. You should make sure that there are enough nutrients in your body, and do sports properly to enhance your body’s resistance and promote wound healing. There are many reasons why wounds cannot heal completely after surgery, so we should carry out timely examination and diagnosis, and give targeted treatment after clarification.