I. How to give first aid and transfer after breaking a finger (limb)? The patient’s injured hand and severed finger should be wrapped and sent to a hospital that has the conditions for replantation surgery as soon as possible. The severed finger can be replanted within 15 hours at room temperature, or within 36 hours after refrigerated treatment. If the severed finger (limb) is involved in the machine, it should be stopped immediately and the severed finger (limb) should be taken out, and the finger (limb) should not be taken out by reversing the machine to prevent the finger (limb) from being injured again. The severed finger (limb) cold storage method: the severed finger (limb) body should be wrapped with wet gauze, placed in a plastic bag airtight, and then placed in about 10oC environment preservation: Second, hand trauma patients need to pay attention to what? Choose a hospital that has the advantage of hand surgery specialty. Proper preservation of the severed finger (limb) Generally prohibit blood pressure-raising drugs and hemostatic drugs. During hospitalization in bed, you should eat more soft, easily digestible food, such as vegetables, fruits, and fresh fish, shrimp, various kinds of high-protein food, less hard, cold, oily food, avoid spicy food. Smoking is prohibited and bed rest is required for 7-10 days. Under the guidance of the doctor, carry out functional exercise. Third, what about the poor function and shape of the hand after trauma? Due to the severity and complexity of hand trauma, as well as the specificity of the anatomical function of the hand itself, hand trauma often leaves a certain amount of functional impairment and shape defects after emergency surgery. For example, non-healing fractures, stiffness, tendon adhesions, advanced peripheral nerve damage, and scar contractures can be addressed surgically. In addition, patients with finger defects can have their fingers reconstructed by means of toe transplantation, and microscopic hand surgery technology has developed to the extent that “what is lacking can be replaced, and how much is lacking can be replaced”, which can meet the requirements of patients for hand cosmetic and functional restoration to the maximum extent. Fourth, how can patients improve the function of the hand? As the saying goes: “three parts surgery, seven parts exercise”, hand function exercise is very important, under the guidance of physicians, in accordance with different proven methods, persistent, hard exercise to achieve the desired desired results, specific methods are: 1, hand trauma patients must be under the guidance of physicians for self-hand function exercise, bone surgery About four weeks to start exercising. 2, passive exercise of the hand joints, that is, the use of external force to extend and flex the joints of the hand. According to the order of wrist joint, metacarpophalangeal joint, near interphalangeal joint and distal interphalangeal joint, gradually move the joints, maintain the external force for about 20 minutes when extending and flexing the joints, and overcome the violence to move the joints to the normal range of joint activities as far as possible. 3, the active extension and flexion of the hand joint exercise that is no external force of the affected hand self-activity. Joint activities in the opposite order of passive, from the distal interphalangeal joint, near the interphalangeal joint, metacarpophalangeal joint, metacarpophalangeal joint to the wrist joint in a sequential manner, the activity of the upper joint, must brake the next joint, and give the upper joint in a certain resistance to the activity of flexion and extension, so that the joint to produce effective activity.