Finger suture wound black necrosis is considered to be related to necrotic epidermis, hyperpigmentation, local blood circulation disorders and other factors, the specific circumstances should be further to the hospital for consultation. 1. Necrotic epidermis: some trauma patients, after wound closure, the local tension is large, the formation of tension blisters, and ultimately developed into necrotic epidermis, thus appearing finger stitch wound black necrosis phenomenon. 2. Hyperpigmentation: after the regeneration of skin tissue, the color of the surrounding skin is obviously different, i.e., hyperpigmentation, which is a normal physiological phenomenon, and generally does not require special treatment. 3. Local blood circulation obstacles: may be due to the wound has not yet fully recovered, resulting in local blood flow is not good, and then appear finger stitches wounds black necrosis. Finger stitches wounds black necrosis may also be other reasons, should be timely hospital consultation, so as not to delay the condition. Pay attention to the skin cleaning, regular change of medicine and other treatments.