中耳炎是耳鼻咽喉科的常见病多发病。多见于儿童及少年。大量的临床资料证明,细菌性感染是中耳炎的主要病因。从中耳炎渗出液中分离病原菌的阳性率最高只达60％左右。细菌培养仍有40％左右为阴性,所以,中耳炎的病因一直未能圆满解决。由于中耳经咽鼓管与咽部相通,中耳炎常伴发于上呼吸道感染,而上 Otitis media is a common disease of otolaryngology frequently. More common in children and adolescents. A large number of clinical data show that bacterial infection is the main cause of otitis media. The highest positive rate of pathogens from otitis media exudate was only about 60%. Bacteria culture is still about 40% negative, so the cause of otitis media has not been satisfactorily resolved. As the middle ear through the eustachian tube and pharyngeal interlinked, otitis media often accompanied by upper respiratory tract infection, and on