一、地方性甲状腺肿和克汀病的危害承德是一个严重的地方性甲状腺肿和克汀病区。解放初期,带有儿头般甲状腺肿的人随地可见;没有甲状腺肿,脖根细的人,反倒被认为稀奇。一些严重病区内,呆、小、聋、哑、瘫的地方性克汀病患者也不少见。1962年,我们对承德郊区的四个生产大队3,714名社员和承德市区五所中小学的3,692名学生进行了检查。结果:郊区社员甲状腺肿患病率(每百名社员中,有可见性甲状腺肿的例数)为20.6～28.9％,甲状腺肿大率(每百名社员中,有可见性与 First, endemic goiter and cretinism hazards Chengde is a serious endemic goiter and cretinism ward. In the early days of liberation, people with childlike goitre were visible everywhere; people without a goiter and a narrow neck root were considered rather strange. In some serious wards, endemic cretinism is not uncommon in those who stay, are small, deaf, dumb, and paralyzed. In 1962, we examined 3,714 members of four production units in Chengde’s suburbs and 3,692 students in five primary and secondary schools in Chengde’s urban area. Results: The prevalence of goiter among suburban members (the number of cases with visible goiter was 100%) was 20.6-28.9%. The rate of goiter (per 100 members,