Your browser does not support javascript:   Search for gard hereSearch for news-and-events here.


Genetic and Rare Diseases Information Center (GARD)

Print friendly version

Meconium aspiration syndrome

Other Names for this Disease
  • MAS
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.


Meconium aspiration syndrome is a serious condition in which a newborn breathes a mixture of meconium and amniotic fluid into the lungs around the time of delivery. This can cause breathing difficulties due to swelling (inflammation) in the baby's lungs after birth. Treatment may include suctioning the newborn's mouth as soon as the head emerges during delivery, deep suctioning of the windpipe, antibiotics to treat infection, oxygen to keep blood levels normal, and radiant heat to maintain body temperature. In severe cases, the baby may need assistance breathing (ventilator).[1]
Last updated: 1/12/2012


  1. Lee KG. Meconium aspiration syndrome. MedlinePlus. 2009; Accessed 1/12/2012.
Your Questions Answered
by the Genetic and Rare Diseases Information Center

1 question(s) from the public on Meconium aspiration syndrome have been answered. See questions and answers. You can also submit a new question.

Basic Information

  • MedlinePlus was designed by the National Library of Medicine to help you research your health questions, and it provides more information about this topic.
  • The Merck Manuals Online Medical Library provides information on this condition. Click on the link to view the information.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Meconium aspiration syndrome. Click on the link to view a sample search on this topic.