通常认为声带麻痹与甲状腺的恶性肿瘤有关。然而，它也可以由甲状腺的良性疾病引起。文献回顾表明，手术证实的甲状腺良性疾病引起声带麻痹的发生率是0．7％。约30％～50％的单侧声带麻痹患者因无症状而不去就医或就医而未引起医生的注意，所以真正的发病率还要高。报告8例甲状 Vocal cord paralysis is commonly associated with thyroid malignancies. However, it can also be caused by a benign thyroid disease. Literature review showed that the incidence of vocal cord paralysis due to thyroid benign disease confirmed by surgery was 0.7%. About 30% to 50% of patients with unilateral vocal cord paralysis because of asymptomatic and not to seek medical treatment or doctor did not draw the attention of doctors, so the real incidence is even higher. Report 8 cases of thyroid