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Assessment of amniotic fluid volume

Everett Magann, MD
Michael G Ross, MD, MPH
Section Editors
Deborah Levine, MD
Lynn L Simpson, MD
Deputy Editor
Vanessa A Barss, MD, FACOG


Normal amniotic fluid volume (AFV) varies across gestation (figure 1). The sonographic assessment of AFV will be discussed here. Factors that influence AFV and specific disorders of AFV (oligohydramnios and polyhydramnios) are reviewed separately:

(See "Physiology of amniotic fluid volume regulation".)

(See "Oligohydramnios".)

(See "Polyhydramnios".)


Qualitative or semi-quantitative assessment of AFV is a standard component of every second- and third-trimester ultrasound examination [1,2].

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Literature review current through: Nov 2017. | This topic last updated: Jul 19, 2017.
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