With a high chance of hand trauma, early treatment methods are crucial to the recovery of hand function, and it is especially critical to choose the right medical institution and the right doctor for treatment. Because of the special nature of hand trauma treatment, it is generally recommended to go to a specialized hand surgeon for treatment. Hand trauma can be divided into simple skin injury, blood vessel, nerve injury, tendon injury, bone injury, and more than two kinds of injury called compound injury, which cannot be repaired, and can only look forward to the second phase of repair and reconstruction. Skin injuries are divided into cuts, crushing injuries, contusions, avulsions, etc., and thermal pressure injuries, burns, electric shock injuries, animal bites, etc. are less common. Simple skin injuries face the first problem is to stop bleeding, is generally the use of compression to stop bleeding, is to use clean gauze to press the wound and the surrounding one centimeter of skin, while elevating the injured limb, ten minutes to stop the bleeding. If there is active bleeding, the site of bleeding should be compressed, while considering whether it is accompanied by vascular nerve and tendon injury. It is not recommended to strangle the proximal end of the limb by hand or with rubber cords or cloths, because sometimes it only blocks the venous return and worsens the bleeding instead. The second issue is the method of anesthesia. Small wounds can be anesthetized with a local infiltration block, which is performed proximal to the wound, rather than inside the wound, which can easily cause the spread of infection. Large wounds will have to be anesthetized with brachial plexus anesthesia or general anesthesia. After successful anesthesia, the wound can be treated, and careful confirmation of anesthesia onset is required before proceeding. It is necessary to check the length and depth of the wound, especially to determine whether there is deep tissue, including vascular nerve damage. The debridement requires the removal of a layer of tissue from the skin edge and the wound surface, customarily called a rolled carpet debridement, and a master can do the same as peeling an apple in one continuous plane down. This is the basic skill of hand surgeons, those who are not doing hand surgery may have to do less in this area. Thorough debridement does not mean an increase in trauma, but can reduce the chance of infection and increase the chance of wound healing. Imagine that the healing of two fresh tissues must be better than the healing of two necrotic tissues soon. After the wound is cleared, the suturing of the skin should be considered. The hand surgeon should consider not only the healing of the skin, but also the direction of scar growth so as not to affect the functional recovery of the hand. The sutures must be handled with fine needles and threads, and the economic conditions can be good to use monofilament imported sutures, which really can reduce the scar proliferation. The skin is not right as tight as possible, but to ensure the blood circulation at the edge of the skin, we require the skin edge between each stitch to be red and moist before we can. Longitudinal scars near the joints can affect the movement of the joints, and local reshaping surgery should be performed early to avoid secondary surgical treatment. Vascular injuries are divided into arterial and venous injuries. Arterial injuries should be completely repaired in one stage. In many patients, only one side of the vessel is repaired, and the affected finger may experience significant cold symptoms in winter. Venous injuries can usually be compensated, while complete dissection requires as much anastomosis of the returning vein as possible. The difficult part of nerve injury in the hand is the recovery of the motor nerves, especially the motor branches of the median and ulnar nerves. The good news is that this problem can now be solved and only a specialized hand surgeon will consider microscopic anastomoses during surgery.