Finger stitches that have not fully healed after one month may be caused by wound infection, malnutrition, and excessive finger activity. Wound healing can be promoted through wound treatment, improved diet and medication. 1. Wound infection: frequent water intake after finger suture, not timely change of medicine, etc., can lead to bacterial invasion of the wound caused by infection, resulting in delayed healing of the wound, should be promptly sterilized with iodine povidone, aseptic dressing dressings, to maintain dryness, and regular change of medication, antibiotic treatment should be carried out in case of serious infections. 2. Malnutrition: If the patient has poor physical condition or hypoproteinemia, it can also cause delayed wound healing. The patient should increase the nutritional intake, eat more protein-rich foods such as eggs, milk, fish, etc., avoid spicy diet, improve hypoproteinemia, and promote wound healing. 3. Excessive finger activity: If there is excessive finger activity after wound closure, it can cause excessive local skin and muscle tension, affecting wound healing, and it is recommended that patients should rest and brake the injured area after closure, avoiding frequent finger activity, reducing local skin tension, and promoting the healing of the incision as soon as possible. Finger suture routine 10 ~ 14 days after the basic healing, if a month later is not completely healed, it is recommended to timely hospital consultation to find the cause, and under the guidance of the doctor for standardized treatment.