The indications for reimplantation are becoming broader and broader, and it can be said that at present it depends mainly on the patient’s wish and the doctor’s level. It is even said that there is no severed finger that cannot be reattached, but in many primary hospitals, whether a severed finger can be reimplanted or not is still based on the following major aspects. 1, the conditions of injury: usually sharp injuries than blunt injuries, especially cutting injuries of the severed finger is easier to survive; 2, the degree of contamination and injury: cleaner than the serious contamination of the severed finger is easier to heal; 3, the patient’s physical condition: there are serious infections, diabetes, or uncontrolled infectious diseases patients do not advocate re-implantation; 4, can not withstand the long time of surgery is not advocated for re-implantation of the patient; 5, pediatric severed fingers should be Try to re-implant all the broken fingers; 6, suicidal tendency, psychological disease patients do not advocate re-implantation.