Suchs首先注意到咽鼓管过度开放的原因除了体重减轻之外,其次是怀孕。他在7年中观察到咽鼓管过度开放31例,其中6例是孕妇。Miller在12年中发现咽鼓管过度开放并同时怀孕者17例。Allen在5年中观察到咽鼓管过度开放者16人,有5例可能与怀孕有关,7例是内服避孕药者。pulee&Horwitz证实这种情况与内分泌有关,并称在男性患前列腺癌时用雌 Suchs first noticed that the cause of over-opening of the eustachian tube was pregnancy except for weight loss. In seven years, he observed 31 cases of eustachian tube over-opening, of which 6 were pregnant women. Miller found over 17 years of eustachian tube opening and pregnancy at the same time in 12 years. Allen observed 16 patients with over-opening of the eustachian tube in 5 years, 5 of whom may be related to pregnancy and 7 of whom are oral contraceptives. Pulee & Horwitz confirmed that this situation and endocrine-related, and said men suffering from prostate cancer with female