甲亢性周期性麻痹是甲亢患者较常见的合并症 ,其发病机制目前还不清楚 ,可能与钾代谢及分布异常、免疫因素、神经调节因素、家族性因素有关。该病体征突出 ,实验室检查可有血钾低于 3.5 mmol/ L,血 T3、T4 升高。因此诊断该病主要根据典型的临床表现及实验室检查。补钾治疗是治疗该病的根本方法 Hyperthyroidism cyclical paralysis is a more common complication of hyperthyroidism patients, the pathogenesis is unclear, may be related to abnormal potassium metabolism and distribution, immune factors, neuromodulation factors, familial factors. Symptoms of the disease prominent, laboratory tests may have serum potassium less than 3.5 mmol / L, blood T3, T4 increased. Therefore, the diagnosis of the disease mainly based on typical clinical manifestations and laboratory tests. Potassium treatment is the fundamental treatment of the disease