When children’s teeth hit and bleed, the following therapeutic measures can be taken respectively: 1, if the X-ray film shows that the periodontal membrane gap is widened, and the capillaries in the apical area are congested or swollen to different degrees, cold compresses can be applied in time to reduce the exudate, and regulate and grind the opposing teeth to alleviate the occlusal contact, so as to avoid the occurrence of occlusal trauma. In the short term, the affected tooth should not be used to chew food, so as not to make the exudate slowly absorbed.2. If the tooth is dislocated, accompanied by periodontal membrane tear, the tooth can be repositioned under local anesthesia, and then make arch splints for fixation.3. If the tooth is broken and the local soft tissues are damaged, it is necessary to clean up the wound, sew up the deeper wounds, and carry out a one-off endodontic treatment on the tooth to make resin crowns for restoration.