Oligohydramnios refers to a situation where the amniotic fluid volume is less than expected for gestational age. Often these fetuses have <500 mL of amniotic fluid.

The estimated prevalence can be up to ~6% of pregnancies 4.

The causes of oligohydramnios are protean and one way to simplify them is by using the mnemonic DRIPPC:

Several sonographic criteria can be used which include:

Development of oligohydramnios early in pregnancy is generally a poor prognostic marker. Amnio-infusion can be attempted in severe cases if appropriate.

Ultrasound - obstetric
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Article information

rID: 4798
System: Obstetrics
Section: Gamuts
Synonyms or Alternate Spellings:

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Cases and figures

  • Case 1: MCDK and oligohydramnios
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    Case 2
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  • Case 4
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