痉挛性发音困难是最严重的发音障碍之一，表现为发音吃力、声低和中断，使从事语言职业的患者失去工作能力。观察痉挛性发音困难25例，多为成人，女性多于男性，绝大多数以语言活动为职业，既往有发音负荷过重或遭受噪音、寒冷等不利条件的影响。曾被误诊为喉炎、功能性失音，? Spasmodic dysphonia is one of the most serious dysphonia, manifested as stuttering, low voice and disruption, so that language proficiency patients lose their ability to work. 25 cases of spasmodic dysphonia were observed, mostly adults, more women than men, the vast majority of language activities as a career, the previous pronunciation overload or suffer from noise, cold and other adverse conditions. Have been misdiagnosed as laryngitis, functional aphonia,?