中耳炎症,特别是咽鼓管功能不良,不仅可导致鼓膜松弛部收缩囊形成,而且可使紧张部收缩。收缩囊可侵入鼓室诸隐窝和上鼓室内形成胆脂瘤。作者将收缩囊分为局限型和鼓膜紧张部全收缩两种类型。两型均分为三期,第一期:通过咽鼓管吹气可改变收缩囊;第二期:上述方法不能改变收缩囊,通过治疗可中止其发展,此时收缩囊内砧镫关节显露(局限型)和/或部分鼓膜粘 Middle ear inflammation, particularly eustachian tube dysfunction, can not only cause contraction of the tympanic membrane in the sagittal relaxation zone, but also cause contraction of the tightening zone. Shrink capsule can invade the tympanic hernia and the formation of cholesteatoma. The authors classify the contractile vesicles into two types, localized and total contractions of the tympanic membrane. Two types are divided into three phases, the first phase: blowing through the eustachian tube can change the contraction of the capsule; the second phase: the above method can not change the contraction of the capsule, by treatment can stop its development, (Localized) and / or partial eardrum sticking