破伤风在临床上屡见不鲜 ,但引起张口受限 ,且潜伏期如此之长 ,在临床上十分少见且极易延误病情 ,现报告如下 :患者男性 ,35岁 ,因张口受限 11天 ,来我院就诊。病人11天前 ,晨起无诱因骤然张口受限 ,追问病史 ,双侧关节区无外伤及特殊病史 ,检查 :病人神志清醒 ,自主体位 ,查体 Tetanus is clinically common, but caused by limited mouth opening, and the incubation period is so long, clinically very rare and extremely easy to delay the disease, the report is as follows: Male patient, 35 years old, due to mouth restriction 11 days, to our hospital Visit. Patients 11 days ago, morning no reason for a sudden limited mouth open, asked history, bilateral traumatic injury and no special history, check: patients with conscious, independent body position, physical examination