先天性外耳道发育不全在总人口中约占０．５～１／万，此外尚可见国外伤、烧伤、白喉、梅毒、结核等导致的外耳道狭窄或闭锁，治疗唯赖手术恢复耳道腔隙，手术范围则根据病变程度及性质而定。新耳道壁上植以自身的游离或带蒂皮片，皮片的固位方法多，如浸有抗生素液的泡沫塑料 Congenital external auditory canal hypoplasia in the total population accounts for about 0.5 to 1/10 000, in addition to the visible foreign injury, burns, diphtheria, syphilis, tuberculosis and other external auditory canal caused by stenosis or atresia, the treatment of Wei Lai surgery to restore the auditory canal space, The scope of surgery depends on the degree and nature of the disease. The new ear canal wall planted with its own free or pedicled skin, skin retention methods such as immersed in antibiotic liquid foam