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Bell 氏麻痹是神经科常见病。在英国的发病率为0.18～0.25%。它可发生于任何年龄。无性别差异。偶有家族性发病的报导,但遗传因子在本病中的意义尚不肯定。Bell氏麻痹有较高的复发率,大约是10%。本病的病因尚不明确。有人谓受凉引起血管痉挛,使面神经局部缺血,其后继发性静脉郁血导致神经肿胀,而肿胀的面神经在茎乳突孔中受到压迫引起面神经麻痹。但这种观点只是推论。有人提出本病可在患有腮腺炎、风疹、水痘和传染性单核细胞增多症的
Bell’s paralysis is a common neurological disease. The incidence in the UK is 0.18 ~ 0.25%. It can happen at any age. No gender differences. Occasional familial incidence of the report, but the significance of genetic factors in the disease is not yet sure. Bell’s paralysis has a high recurrence rate, about 10%. The etiology of the disease is not yet clear. Some people say that vasospasm caused by cold, so that the facial nerve ischemia, followed by secondary venous blood lead to nerve swelling, and swelling of the facial nerve in the stylomastoid hole caused by facial nerve paralysis. But this view is only corollary. It has been suggested that the disease can be in mumps, rubella, chickenpox and infectious mononucleosis