Oligohydramnios

Last revised by Dr Jeremy Jones on 26 Sep 2021

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.

Epidemiology

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

Pathology

Causes

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

Associations

Radiographic features

Antenatal ultrasound

Several sonographic criteria can be used which include:

Treatment and prognosis

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

Complications

See also

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Cases and figures

  • Oligohydramnios
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  • Oligohydramnios
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  • Oligohydramnios
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  • Oligohydramnios with autosomal recessive polycystic kidney disease
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  • With MCDK
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  • With ARPCKD
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  • With ARPCKD
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  • With megacystis
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  • With asymmetrical intrauterine growth restriction
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