The anatomy of the hand is complex, the function is fine, and the requirements are also high. -(4) Repair all the tissues in the deep part as far as possible in one phase, if there are too many tissue defects, tissue grafting should be used to repair the wound; (5) Strive to close the wound in one phase; (6) Proper postoperative treatment, the injured hand should be fixed in a functional position. The above points are the things that need to be noted when dealing with hand trauma.