After the finger injury stitches are not allowed to drink, there are several reasons: First, because in the process of tetanus injection treatment, or oral anti-inflammatory drug treatment, and when drinking alcohol, it will affect the effect of these drugs, or increase the toxic side effects of the above drugs, the body produces great damage. Secondly, if the finger injury is more serious, or even the incision has the possibility of blackening or necrosis, after drinking alcohol, it will affect the blood circulation of the end of the finger, which will affect the healing of the incision, and even lead to the possibility of the original blackening or necrosis to be further increased. Thirdly, if the finger is injured and there is a fracture at that time, drinking alcohol can lead to osteoporosis, which will cause the fracture to heal slowly over time, or even lead to non-healing of the fracture. Therefore, you must wait until the cut of the injured finger is completely healed, or the bone is completely healed, before you can drink.