锌是人体内不可缺少的微量元素。锌的主要作用有:促进儿童生长、性器官及智力的发育:合成含锌的胰岛素;存在于眼球组织中,提高视力;参与核酸及蛋白质代谢;增强抗感染能力等等。现代研究表明,妊娠期母体缺锌对孕妇及胎儿都十分不利,不仅易导致孕期并发症,且对胎儿的生长发育更为有害。近年有多项研究发现,缺锌容易导致妇女妊娠高血压、先兆流产、先兆子痫、分娩期出血、易感染及滞产等,而适量补锌则可使母亲妊娠期并发症减少。国外有报道说,如果给孕妇每日补锌20mg,可减少妊娠高血压发生,还能减少阴道出 Zinc is an indispensable trace element in human body. The main role of zinc are: to promote children’s growth, development of sexual organs and intelligence: the synthesis of zinc-containing insulin; exists in the eye tissue, improve visual acuity; involved in nucleic acid and protein metabolism; enhance anti-infective ability and so on. Modern research shows that maternal zinc deficiency during pregnancy is very unfavorable for both pregnant women and fetuses, which not only leads to complications during pregnancy but also is more harmful to the growth and development of the fetus. In recent years, a number of studies have found that zinc deficiency can easily lead to pregnancy-induced hypertension, threatened abortion, preeclampsia, bleeding during childbirth, susceptibility to infection and prolongation of labor. However, adequate zinc supplementation can reduce the risk of complications during pregnancy. Foreign reports have said that if pregnant women daily zinc 20mg, can reduce the incidence of pregnancy-induced hypertension, but also reduce the vaginal