把急性喉外伤按外伤范围分成五种类型：Ⅰ型为较小的喉内血肿或裂伤，无可见的骨折；Ⅱ型为水肿，血肿，较小的粘膜破裂，没有暴露的软骨，ＣＴ扫描无移位的骨折；Ⅲ型为大块水肿，粘膜撕裂，暴露的软骨，声带固定，移位、骨折；Ⅳ型为Ⅲ型加２个以上骨折线或喉粘膜广泛外伤； Acute laryngeal injury according to the scope of the injury is divided into five types: type I was a small laryngeal hematoma or laceration, no visible fracture; type edema, hematoma, small mucosal rupture, unexposed cartilage, CT scan No dislocation of the fracture; type Ⅲ for large edema, mucosal tear, exposed cartilage, vocal cord fixation, displacement, fracture; type Ⅳ for more than two fracture lines or laryngeal mucosa extensive trauma;