听器先天性畸形在全身所有的各类畸形中占1～6％。据(1975)统计,每万名居民中先天性听器畸形有1～2名。对儿童来说,它不仅影响语言形成,且对身心发育亦不利。术前对患耳传导性耳聋的听功能、局部检查、X线相的中耳结构应有了解。虽然近年来手术疗法取得相当的进展,但疗效还很不理想。本文报告了40例5～13岁先天性外耳道闭锁 Congenital hearing aids all types of deformities in the body accounted for 1 to 6%. According to (1975) statistics, every ten thousand inhabitants of congenital hearing aids have 1 or 2. For children, it affects not only the formation of language but also physical and mental development. Preoperative hearing-induced hearing loss in patients with ear, local examination, X-ray structure of the middle ear should be understood. Although surgery has made considerable progress in recent years, its efficacy is still not satisfactory. This article reports 40 cases of congenital external auditory canal 5 to 13 years old atresia