羊水过少在整个妊娠期属于较为常见的并发症,使围产儿的病死率明显提高,同时使孕妇分娩率和引产率均增加。目前大多研究表明主要原因可分为胎儿因素、胎盘及胎膜因素和母体因素或其他未明确因素,可造成不同复杂妊娠结局。现仍有部分患者的病因尚未阐明,因此也无有效的措施能够很好的对其预防和治疗。为正确认识和处理这一疾病,希望通过找到引起羊水过少的重要病因从而达到有效治愈的目的,本文就国内外关于羊水过少的相关因素作一综述。 Oligohydramnios is a more common complication throughout pregnancy, resulting in a significant increase in perinatal mortality and an increase in both childbirth and induction rates. At present, most studies show that the main reasons can be divided into fetal factors, placental and fetal factors and maternal factors or other factors that are not clear, can lead to different complex pregnancy outcomes. There are still some patients whose etiology has not been elucidated yet, so there is no effective measure to prevent and treat them well. In order to correctly understand and deal with this disease, we hope that by finding the important cause of oligohydramnios so as to achieve the purpose of effective cure, this article reviews the related factors of oligohydramnios at home and abroad.