Objective To investigate the main causes of oligohydramnios and its influence upon perinatal fetus,in order to improve antepartum diagnoses and monitoring,find and solve problem promptly.

• 目的分析羊水过少主要病因(合并症与并发症),探讨羊水过少对围产儿的影响,加强产前诊断与监护,发现问题及时处理,减少胎儿窘迫、新生儿窒息及围产儿死亡的发生。