颅神经之中因损伤或疾病而致麻痹者,以面神经为最常见,因为它通过狭长的面神经管,遇有神经炎或骨膜炎时,在管内的面神经甚易肿涨受压。面神经麻痹常出现于伯耳(Bell)麻痹或中耳炎,乳突炎的病人,也可为颅底骨折,刺伤,火器伤等所致。行乳突手术,腮腺瘤或乳突与下颌骨之间的肿瘤手术时,可能损伤着面神经。目前施行听神经瘤根治手术时常须牺牲附着的面神经,成为永 Facial nerve due to injury or disease in the cranial nerves due to paralysis, the facial nerve is the most common, because it through the narrow facial nerve canal, in case of neuritis or periostitis, the facial nerve in the tube is very easy swelling. Facial paralysis often appears in Bell paralysis or otitis media, mastoiditis patients, but also for skull base fracture, stab wounds, firearm injuries and so on. Mastoid surgery, parotid adenoma or mastoid and mandibular tumor surgery may damage the facial nerve. The current implementation of acoustic neuroma radical surgery often have to sacrifice the attached facial nerve, become forever