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Quick Facts

Meconium Aspiration Syndrome

By

The Manual's Editorial Staff

Last full review/revision Nov 2020| Content last modified Nov 2020
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Meconium is the material that's inside your baby's intestines while still in your womb (an unborn baby is called a fetus). Even though a fetus doesn't eat food, it swallows the amniotic fluid that it floats in. This forms a sticky, dark green material in the fetus's intestines.

Aspiration is when you inhale some material into your lungs.

What is meconium aspiration syndrome?

If a fetus is stressed right before birth, the fetus can poop meconium into the amniotic fluid. Meconium aspiration syndrome is when a fetus inhales amniotic fluid full of meconium.

Inhaling plain amniotic fluid isn't harmful. But if the fluid contains meconium, the meconium can block your baby's air passages and irritate the lungs.

What are the symptoms of meconium aspiration syndrome?

Symptoms include:

  • Fast breathing

  • Looking like they're struggling to breathe

  • Grunting when breathing out

  • Blue skin from low oxygen levels

How can doctors tell if my baby has meconium aspiration syndrome?

Doctors suspect meconium aspiration syndrome if there is meconium in the amniotic fluid when your baby is born and your baby has breathing problems. Doctors may also do:

How do doctors treat meconium aspiration syndrome?

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Preventive Health Care Visits in Infants
Frequent doctor visits are recommended for all infants younger than 1 year of age. These visits, also called well-child visits, make it possible to check development, look for health problems, provide age-appropriate vaccinations, and educate parents. Which of the following is a condition that might affect some infants born very prematurely, with less than 32 weeks of development in the uterus?
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