Abstract: Anemia during pregnancy can lead to a variety of adverse pregnancy outcomes，such as premature delivery，reduced bleeding tolerance，postpartum hemorrhage and even hemorrhagic shock，puerperal infection，as well as low neonatal weight and neonatal death，which do serious harm to maternal and fetal health.Guidelines for the diagnosis and treatment of iron deficiency and iron-deficiency anemia during pregnancy in China suggest that through active monitoring of hemoglobin and serum iron，dietary iron supplementation should be strengthened to prevent anemia during pregnancy，thus avoiding the occurrence of adverse pregnancy outcomes.

Key words: anemia during pregnancy, adverse pregnancy outcomes, prevention, treatment

摘要： 孕期贫血会导致各种妊娠不良结局，如早产，出血耐受性降低，产后出血甚至失血性休克，产褥感染，以及新生儿低体重，新生儿死亡等，严重危害母胎健康。我国妊娠期铁缺乏和缺铁性贫血诊治指南建议通过积极监测血红蛋白及血清铁，加强饮食补铁，预防孕期贫血，从而避免不良妊娠结局的发生。

关键词: 孕期贫血, 不良妊娠结局, 预防, 治疗