足月妊娠羊水量减少包括羊水过少和羊水偏少,在临床上目前公认的方法是根据B超下羊水指数进行诊断,B超检测羊水指数≤5.0 cm为羊水过少,5.0～8.0 cm为羊水偏少[1],继续等待有可能导致羊水过少,羊水过少易导致胎儿宫内窘迫、新生儿窒息以及围产儿病死率等显著增加。为保证母婴安全,足月妊娠羊水偏少需要适时终止妊娠,根据病 The decrease of amniotic fluid in term pregnancy, including oligohydramnios and oligohydramnios, is currently recognized clinically as a diagnostic method based on B-subnuclear amniotic fluid index (BMI), with an amniotic fluid index of ≤5.0 cm as too little amniotic fluid and 5.0-8.0 cm Anemia of amniotic fluid [1], continue to wait may lead to oligohydramnios, oligohydramnios easily lead to fetal distress, neonatal asphyxia and perinatal mortality significantly increased. To ensure the safety of mother and child, full-term pregnancy oligohydramnios need timely termination of pregnancy, according to the disease