口腔颌面部火器伤47天后继发大出血少见,现报告一例。男性18岁,炮弹炸伤。弹片由左颔下进入,经口底停留于右颌下区。次日入院时双颌下口底高度肿胀,右颌下区淤血,左颌下有一1×1.2cm伤口,表面覆盖血痂,伤道深约12cm。舌下淤血水肿,舌体抬高后坠,呼吸不畅。X线片示右颌下 Oral and maxillofacial firearm injury 47 days after secondary bleeding is rare, a case is reported. Male 18 years old, shell wounds. Shrapnel from the left to enter, by the mouth to stay in the right mandibular area. The next day when the entrance to the hospital, the height of the bilium bottom swollen, the right submandibular congestion, a 1 × 1.2cm under the left mandibular wound covered with blood scab wound depth of about 12cm. Sublingual congestion edema, tongue elevation after falling, poor breathing. X-ray shows the right jaw