近亲结婚造成痴傻儿常有报道,可是痴傻儿90%左右是由于缺碘引起的,却鲜为人知。全世界有10亿人口生活在碘缺乏病地区,其中4.25亿在我们中国。据统计分析,全国患地方性甲状腺肿(俗称粗脖子病)者有约800多万人,患地方性克汀病者有近20万人;患亚克汀病者估算有800—1000万人。应该说,我国是世界上碘缺乏病流行比较严重的国家之一,这 Cousins ​​caused by cousins ​​marriages often reported, but about 90% of stupid children is caused due to iodine deficiency, but little-known. One billion people worldwide live in areas with iodine deficiency disorders, of which 425 million are in China. According to statistical analysis, there are about 800 million people suffering from endemic goitre (commonly known as coarse neck disease) in the country, nearly 200,000 people suffering from endemic cretinism, and an estimated 8 to 10 million people suffering from cretinism . It should be said that our country is one of the countries where iodine deficiency disorders are more prevalent in the world