Ｇｒａｖｅｓ病、自身免疫性甲状腺炎和单纯性甲状腺肿是最常见的甲状腺疾病 ,但其发病原因仍未完全明了。在过去 1 0年 ,有学者论述吸烟对甲状腺的影响 ,认为吸烟是Ｇｒａｖｅｓ病的危险因素 ,但其它研究结论尚不一致。本研究对此进行了评价。方法　把 1 95 3年 1月～ 1 982年 Graves’ disease, autoimmune thyroiditis and simple goiter are the most common thyroid diseases, but the cause of the disease is not fully understood. In the past 10 years, some scholars discussed the impact of smoking on the thyroid gland, smoking is considered a risk factor for Graves disease, but the conclusions of other studies are not the same. This study evaluates this. The method of 1 953 years from January to 1982 years