Open hand injury is a common clinical symptom. Experts say that if patients with open hand injuries are not treated promptly and effectively, it will do great harm to their health. In this regard, the following small series briefly introduces how to deal with open hand trauma. I hope the following introduction to Bian Xiao can help everyone. A, anesthesia surgery must be carried out under perfect anesthesia. Single finger injury can be anesthetized by finger nerve block; Wounds involving palm, back of hand or multiple fingers can be used as wrist nerve block; Larger wounds are best performed under brachial plexus anesthesia. Second, the purpose of debridement is to remove dirt and foreign bodies from wounds, remove tissues that have lost vitality, turn contaminated wounds into clean wounds (not sterile wounds), and prevent infection. The specific method is the same as the general trauma chapter. Third, deal with the injured tissue. If conditions permit, the damaged tissue should be repaired as soon as possible. Because the anatomical relationship is clear at this time and the secondary degeneration is slight, it is not only easy to operate, but also has good effect and rapid functional recovery. Fourth, closing the wound Closing the wound is an important measure to prevent wound infection. Only by closing the wound on the basis of thorough debridement can we protect the exposed deep tissue, prevent bacterial invasion and prevent infection. Rich hand circulation and strong anti-infection ability. The time limit for hand wound closure can generally be extended to 12 hours after injury, but it is not fixed and can be increased or decreased according to the nature of injury, pollution degree and temperature. Fifth, the bandaging and fixation of hand trauma is very important. Bone and joint injuries should be bandaged and fixed in functional position after operation. Tendon nerve injury should be fixed in a tension-free position after repair.