As the most critical part of replantation of severed fingers is the need to anastomose the blood vessels and re-establish blood circulation, while the blood vessels themselves have certain damage after the injury of severed fingers, and even in some cases, the blood vessels have to be transplanted during the operation, and the blood vessels are not as strong as bones, and some spasms and embolisms will occur after the operation due to the pain, cold, nicotine and other stimuli, as well as the patient’s emotion, all of which are unpredictable. Therefore, the success of reimplantation depends most of all on the condition of the vessel itself and the level of vascular anastomosis of the operator. Therefore, often when patients ask what the success rate is, every responsible physician will not say 100 percent. In fact, there is no practical significance in asking this question.