The development of science and technology and economic development cannot be separated from the hard work of some workers, and accidents are inevitable. Some workers may have broken fingers due to their own improper operation, does it mean that their hands will be ruined and no longer useful? Nowadays, medical science is constantly developing, and the finger replantation in China is becoming more and more mature. So how is the treatment of broken finger? The general procedure of finger replantation surgery, the general procedure and principles of replantation surgery are similar to those of limb replantation surgery in many aspects. Here, we would like to introduce the characteristics of finger replantation. 1.Anesthesia Generally, brachial plexus block anesthesia is used, and if necessary, continuous high epidural anesthesia is used, and in some cases, ether intubation anesthesia or anesthesia in the sheath of flexor tendon is also used. 2.Clearance Take care to avoid accidental removal of blood vessels and finger nerves trapped in the subcutaneous tissue, and emphasize microscopic clearance. 3.Bone and joint fixation The broken end of the bone of neatly cut injury is generally shortened by 0.5cm, and the uneven injury is given the corresponding bone broken end for excision according to the situation of debridement. 1 stainless steel pin of 1mm diameter is used for intramedullary fixation, or 2 stainless steel pins are used for cross fixation of the fracture, and micro screw fixation or bone nail intramedullary fixation is also used. After the joint of the broken finger, use 2 same thickness of the Kirschner needle for early line arthroplasty or metacarpophalangeal joint early arthroplasty. 4.Suture of tendon The extensor tendon is commonly sutured with 2-0 or 3-0 silk interrupted, and the central part of the extensor tendon and the lateral cord should be sutured at the same time when the proximal segment is severed, and the extension of the lateral cord should be sutured at the middle segment. The flexor tendon in the cleaner severed finger can be sutured with 3-0 nylon thread, taking Kleinert and other methods to anastomose the deep flexor tendon of the finger, with interrupted sutures of 7-0 nylon thread at the periphery. Care should be taken to excise the superficial flexor tendon, and the flexor tendon sheath should be excised by 1 cm. In principle, the order of vascular anastomosis is to suture the dorsal finger vein first, followed by the finger artery. The stitch distance between the dorsal finger vein and the finger artery should be even, and the stitch distance can be wider than that of the artery. After the dorsal finger vein is sutured, the soft tissue or skin should be sutured with several stitches to protect the vessel from drying and damage. After the epithelium and trimming of the arterial dissection, the vascular clips are loosened and the proximal dissection should have good blood spray before the artery is sutured. After the artery is well sutured, the blocked vascular clips are released and the artery distal to the anastomosis can be seen to be filled and pulsating, the distal blood supply of the replanted finger is good, the skin color turns from pale to red and the skin temperature increases. This indicates that the blood circulation has been successfully reconstructed. At this time, the unsutured arteries and veins should be ligated one by one to prevent surgical bleeding and swelling or even the formation of pseudoaneurysm, which will affect the venous reflux and arterial blood supply and make it easy for infection to occur. The repair of vascular defects is more common with finger artery defects. The solutions are: (1) crossed anastomosis. (2) transfer of the adjacent finger artery. (3) Arterial grafting. (4) Finger vein grafting. The nerve suture is a simple sensory fiber, which can be regenerated rapidly and recovered satisfactorily as long as there is a good match, so it should be repaired in one stage as much as possible. 7.Suturing of the skin Generally, interrupted sutures are used, so that the sutures are not too tight and turned inside out to avoid compression of blood vessels. The sutured veins and arteries should be avoided. Modify this paragraph broken finger replantation is prone to complications, it is easy to induce infection, so if it really does not happen broken finger or hope that patients should go to the regular hospital for the sake of their health, should not easily listen to the local recipe with to small clinics to avoid more serious situations.