The blackening of the finger debridement wound may be caused by poor blood circulation, if there are no other symptoms, usually do not need to worry too much, or it may be caused by skin necrosis, if this is the case should be timely to the hospital, if necessary, can take the way of surgery for treatment. The blackening of the finger debridement wound is usually caused by poor blood circulation due to improper postoperative care, you can usually speed up the circulation of blood through massage to improve the symptoms of blackening of the wound, and wait for about half a year, the wound area will usually return to the normal state. The blackening of the finger debridement wound may also be the result of improper treatment during the operation, leading to infection of the wound and skin necrosis. This condition is more serious and should be taken seriously and treated in accordance with medical advice. In daily life, we should maintain the hygiene of the wound site, regular disinfection, wound recovery period, nursing.