甲状腺癌的病因,目前尚不清楚。流行病学调查和实验室研究发现其病因与放射性损伤,缺碘与高碘,遗传因素有关。动物实验观察鼠血中促甲状腺素升高时,甲状腺肿瘤发生率也增高,而加用甲状腺激素,能使发病率降低。近年来研究提示,女性激素有可能为致癌因素之一,某些甲状腺增生性疾病可合并甲状腺癌。目前国内外多 The etiology of thyroid cancer is currently unclear. Epidemiological investigations and laboratory studies have found that the etiology and radiation damage, iodine deficiency and high iodine, and genetic factors. In animal experiments, the incidence of thyroid tumors was also increased when the thyrotropin levels in the blood of rats increased. Adding thyroid hormones can reduce the incidence of thyroid cancer. Recent studies have suggested that female hormones may be one of the carcinogenic factors, and some thyroid proliferative diseases may be associated with thyroid cancer. Currently at home and abroad