What happens if baby poops in womb before birth?

If your baby poops in the womb or during the birthing process, they might develop a dangerous lung condition called meconium aspiration. Babies are at risk for passing meconium before birth if: The mother has preeclampsia. The labor or delivery is particularly stressful.


While not the norm, it is possible for baby to pass meconium before birth. This can lead to a condition known as meconium aspiration syndrome (MAS). MAS happens when a newborn baby accidentally breathes