突发性聋(sudden deafness)是突然发生的原因不明的感音神经性聋,其发病率约5人/10万～20人/10万,近年来有增加趋势,多见于40岁以上者。目前认为发病可能与病毒感染、血管性因素(如血管痉挛、血栓形成、血小板聚集功能增加、耳蜗微循环障碍等)、自身免疫障碍以及窗膜破裂等因素有关。临床表现为突发性聋,多出现在数分钟～3日内,程度多为中重度,有时伴有耳鸣、眩晕。 Sudden deafness is a sudden unexplained sensorineural deafness, the incidence of about 5/100000 ~ 20/100000, an increasing trend in recent years, more common in those over 40 years of age. At present, the incidence may be related to viral infection, vascular factors (such as vasospasm, thrombosis, increased platelet aggregation, cochlear microcirculation, etc.), autoimmune disorders and window membrane rupture and other factors. Clinical manifestations of sudden deafness, and more in a few minutes to 3 days, mostly in the degree of severity, sometimes accompanied by tinnitus, dizziness.