1992～1995年间用回波描记检查9334例孕妇。测量最大羊水池诊断羊水过多,羊水池>8cm为羊水过多。诊断最早为孕18周,最晚孕40周。结果56例羊水过多孕妇中,15例胎儿畸形,其中心脏及胃肠畸形最为常见。羊水过多的围产儿死亡率为28.5％。46例轻～中度羊水过多(最大羊水池<16cm)的围产儿死亡率为19.5％;重度羊水过多(最 Between 1992 and 1995, 9334 pregnant women were examined by echography. Measurement of the largest amniotic fluid pool diagnosis of polyhydramnios, amniotic fluid pool> 8cm is too much amniotic fluid. The earliest diagnosis of pregnancy 18 weeks, the latest 40 weeks pregnant. Results 56 cases of polyhydramnios pregnant women, 15 cases of fetal malformations, of which the most common heart and gastrointestinal malformations. Excess amniotic fluid perinatal mortality was 28.5%. 46 cases of mild to moderate polyhydramnios (maximum amniotic fluid pool <16cm) perinatal mortality was 19.5%; severe polyhydramnios