随着儿童疾病谱的改变 ,社会和家长对儿童的生长发育越来越重视。近些年来 ,到儿科内分泌门诊就诊的乳房早发育儿童逐年增多。国外研究发现乳房早发育的增多可能与环境雌激素有关 ,因此我们探讨了乳房早发育与患儿尿植物雌激素二羟基异黄酮 (ｄａｉｄｚｅｉｎ)水平的关系。对象 With the change of children’s disease spectrum, the society and parents pay more and more attention to children’s growth and development. In recent years, pediatric endocrine clinic visits to early breast-feeding children increased year by year. Foreign studies have found that early breast enlargement may be related to environmental estrogen, so we explored the relationship between early breast development and the level of urinary phytoestrogen daidzein in children. Object