分泌性中耳炎病人70例，共85耳，其中浆液性积液50耳，粘液性35耳。年龄3～49岁，平均28．8岁。纯音测听检查为传导性聋；声阻抗检查，鼓室压力曲线呈B型，铝骨肌反射阴性；除外肿瘤、先天畸形等其他原因引起的咽鼓管阻塞。根据中耳积液中内毒素检测结果分为内毒素阳性组和内毒 Secretion otitis media in 70 patients, a total of 85 ears, of which 50 serous effusion, mucus 35 ears. Age 3 to 49 years old, with an average of 28.8 years old. Pure tone audiometric examination for the conduction of deafness; acoustic impedance test, tympanic pressure curve was B, aluminum muscle negative reflection; except for tumors, congenital malformations and other causes of eustachian tube obstruction. According to the results of middle ear effusion endotoxin test is divided into endotoxin positive group and internal toxicity