缺铁性贫血是由于体内Fe~(2+)绝对缺乏导致血红蛋白合成减少从而引起的小细胞低色素性营养性贫血。缺铁性贫血严重影响人类健康,尤其是孕妇贫血在我国发生率呈上升趋势,孕早期、孕中期、孕晚期分别为9.6%、19.8%、33.8%。1妊娠期缺铁性贫血的常见影响因素缺铁性贫血是妊娠期间最常见的贫血,占妊娠期贫血的95%。妊娠期间胎儿生长发育快速,母 Iron deficiency anemia is due to the absolute lack of Fe ~ (2 +) lead to reduced hemoglobin synthesis resulting in small cell hypochromic nutritional anemia. Iron deficiency anemia seriously affects human health, especially pregnant women, the incidence of anemia is on the rise in China. The rates are 9.6%, 19.8% and 33.8% in the first trimester, second trimester and third trimester respectively. 1 common factors affecting iron deficiency anemia during pregnancy Iron deficiency anemia is the most common anemia during pregnancy, accounting for 95% of anemia during pregnancy. Fetal growth during pregnancy rapid development, mother