常见并发症有如下几种：①中枢神经系统：缺氧缺血性脑病和颅内出血；②呼吸系统：胎粪吸入综合征、呼吸窘迫综合征及肺出血；③心血管系统：缺氧缺血性心肌损害（三尖瓣闭锁不全、心力衰竭、心源性休克）；④泌尿系统：肾功能不全或衰竭及肾静脉血栓形成等；⑤代谢方面：低血糖、低钙及低钠血症等；⑥消化系统：应激性溃疡和坏死性小肠结肠炎等。
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