【疾病的概念】起因明确的突然发病的耳聋均称为广义的突发性耳聋,其中一般把原因不明者作为狭义的突发性耳聋。本文所指的突发性耳聋就是指狭义的耳聋。总之,突发性耳聋是突然发病、原因不明、呈现高度音感耳聋的疾病(日本厚生省诊断标准)。通常的耳聋是一侧性内耳性耳聋, The concept of disease】 【sudden onset of a clear cause of deafness are referred to as a generalized sudden deafness, which in general the unexplained sudden narrowness as a narrow sense of deafness. Sudden deafness referred to in this article refers to the narrow sense of deafness. In short, sudden deafness is a sudden onset, the cause is unknown, showing a high degree of flu deafness (Japanese Ministry of Health diagnostic criteria). The usual deafness is one-sided inner ear deafness,