分析了上海新华医院１９９２年１月至１９９４年１２月羊水过少１４７例，发生率２．６９％。结果表明：羊水过少高发于４０至４１＋６孕周间，占５３．７４％（７９／１４７）；５５例高危妊娠合并羊水过少者多发生于４０孕周前，占６９．０９％（３８／５５）；１４７例中出现胎儿窘迫者５３例；低Ａｐｇａｒ评分者９例；无１例围产儿死亡。用Ｂ超羊水指数作为监测羊水量的指标，符合率达９７．６７％，提示可作为及早发现羊水过少的可靠方法，以剖宫产尽快结束分娩能显著改善围产儿预后。 Analysis of Shanghai Xinhua Hospital, January 1992 to December 1994, 147 cases of oligohydramnios, the incidence of 2.69%. The results showed that: oligohydramnios occurred in 40 to 41 + 6 gestational weeks, accounting for 53.74% (79/147); 55 cases of high-risk pregnancies with oligohydramnios occurred more than 40 weeks before pregnancy, accounting for 69.09% (38 / 55); 147 cases of fetal distress in 53 cases; low Apgar score in 9 cases; no one perinatal death. With B super-amniotic fluid index as an indicator of amniotic fluid monitoring, with a rate of 97.67%, suggesting early detection of oligohydramnios as a reliable method to cesarean section as soon as possible delivery can significantly improve perinatal outcomes.