羊水粪染主要见于足月产及过期妊娠,胎便排入羊水是胎儿成熟的表征或胎儿宫内窘迫的征象已得到公认.胎盘清理胎便能力降低是近年来提出的新的观点,作为羊水粪染主要的发病机制之一备受关注.胎儿羊水粪染可损伤多个系统,可通过直接观察、超声等及时诊断羊水粪染,及时对胎儿及新生儿进行干预,尽可能的降低对围产儿的不利影响,提高其生命质量.“,”Meconium-stained amniotic fluid (MSAF) is mainly seen in full-term and expired pregnancy.It has been widely accepted that meconium flowing into the amniotic fluid can be either the mature sign of the fetus or the sign of fetal distress.The declining cleaning ability of the placenta to reduce meconium has become a new statement during the past years,which has also been paid much attention as one of its main pathogenesis for meconium-stained amniotic fluid.MSAF can damage multiple systems of the fetus.Also, MSAF can be diagnosed in time through direct observation, ultrasound and other methods,and timely intervention in fetus and newborns should also be carried out in order to reduce the adverse effects on perinatal infants and improve quality of life.