Wound always does not heal refers to the wound does not heal normally after a longer period of time, the common reasons are the patient’s nutritional deficiency, high blood sugar, chronic infection of the wound, insufficient blood supply at the wound, etc.. Medical personnel can be informed to examine the wound in a timely manner and solve the problem symptomatically. According to the triggering causes, the common treatment methods for long-term non-healing wounds are as follows: 1. Nutritional deficiency: nutritional deficiency can lead to diseases such as hypoproteinemia and anemia, which slow down the wound healing. Diet like eggs, milk and other high-protein diet and apples, celery and other foods rich in fiber and other essential trace elements in the body can assist in wound healing. Also pay attention not to drink alcohol or eat spicy and greasy food to avoid affecting the wound healing rate; 2, high blood sugar: high blood sugar will lead to difficult wound healing, serious hyperglycemia can even lead to diabetic foot, resulting in foot lesions infection. You can take oral hypoglycemic drugs such as metformin and acarbose under the guidance of a doctor to control blood sugar, if the effect of oral hypoglycemic drugs is not good, it is necessary to inject insulin and so on under the guidance of a doctor to control blood sugar. At the same time to clean the wound on time, keep the wound clean, to prevent wound infection; 3, chronic infection of the wound: if the wound appears chronic infection or foreign body irritation, should be timely debridement, to maintain wound hygiene. More serious chronic infection in addition to debridement, but also according to the type of infection bacteria to take or inject antibiotics and other treatment; 4, insufficient blood supply: blood circulation is blocked will lead to insufficient blood supply to the wound and thus affect the wound healing, common in the extremities and other parts of the wound, may be due to long-term bed-ridden resulting in a decline in blood circulation or blood vessels have blockage affecting blood circulation. You can maintain the blood circulation rate with the help of medical personnel or check whether there is any obstruction of blood circulation and carry out relevant treatment.