本文对长期以来关于胎粪的假说提出异议。以往认为:(1) 羊水中出现胎粪是胎儿窘迫的一个独立征象;(2) 胎粪吸入发生于胎儿出生时或宫内喘气,是对重度窒息的反应;(3) 胎粪吸入综合征是吸入的胎粪对新生儿肺产生有害影响所致。最近的报道认为胎粪吸入综合征不单由胎粪吸入所致,而是围产期窒息。 This article argues against the long-held hypothesis of meconium. In the past that: (1) meconium in the amniotic fluid is an independent manifestation of fetal distress; (2) meconium aspiration occurs in the fetus at birth or intrauterine panting, is a response to severe asphyxia; (3) meconium aspiration syndrome It is caused by inhaled meconium that has a detrimental effect on neonatal lungs. Recent reports suggest that meconium aspiration syndrome is not caused by meconium aspiration but perinatal asphyxia.