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DefinitionPolyhydramnios is the presence of excessive amniotic fluid surrounding the unborn infant.
Amniotic fluid surrounds and cushions the infant throughout development. Decreased or excessive amounts of amniotic fluid may be associated with abnormalities in the fetus.
Polyhydramnios may be from failure by the fetus to swallow and absorb amniotic fluid in normal amounts. This may occur as a result of gastrointestinal disorders, neurological problems, or a variety of other causes. Polyhydramnios may also be related to increased fluid production, as is the case with certain fetal lung disorders.
Sometimes, no specific cause for polyhydramnios is found.
This condition is discovered during pregnancy, and evaluated prior to delivery. If a fetal abnormality is found, the baby will be delivered in a hospital with specialists who can provide immediate evaluation and treatment.
Documenting polyhydramnios may include:
Update Date: 1/16/2004Jacqueline A. Hart, M.D., Department of Internal Medicine, Newton-Wellesley Hospital, Newton, Ma., and Senior Medical Editor, A.D.A.M., Inc. Previously reviewed by Peter Chen, M.D., Department of Obstetrics & Gynecology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network (2/5/2002).
Last updated: Tue, 06 Jan 2009 00:20:03 GMT