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Coronavirus Update:What patients and families need to know

Pediatric Meconium Aspiration Syndrome

Key points about meconium aspiration syndrome (MAS)

  • Meconium aspiration happens when a newborn breathes in a mixture of meconium and amniotic fluid.
  • Health care providers don’t fully understand why babies release stool before they are born.
  • It is most common in babies born full-term (between 37 to 41 weeks) who are small for gestational age. It is also most common in babies who are born post-term (after 42 weeks).
  • Your health care provider will check the amniotic fluid for meconium at the time of birth.
  • Most babies generally get better within a few days.
Departments

Departments

Critical Care Medicine

With the only pediatric, cardiac and neuro-intensive care units in the immediate Washington, D.C., area, Children’s National Hospital is the region’s leading provider of critical care medicine for seriously ill and injured infants and children.

Neonatology

Whether your infant has arrived prematurely or has a critical illness, the Children’s National Hospital top-ranked team assists in coordinating every service you and your baby need, including consultations, assessments, emergency treatments and continuing care.

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