Polyhydramnios

Overview


Plain-Language Overview

Polyhydramnios is a condition during pregnancy where there is an excessive amount of amniotic fluid surrounding the baby in the womb. This fluid is important for protecting the baby and allowing movement, but too much can cause problems. It mainly affects the pregnancy and fetal development by increasing the risk of premature birth and complications during delivery. The condition can be caused by issues with the baby's ability to swallow or absorb fluid, or by maternal health problems like diabetes. Symptoms may include a rapidly growing belly and discomfort for the mother. Monitoring and managing the fluid levels is important to reduce risks to both mother and baby.

Clinical Definition

Polyhydramnios is defined as an abnormal accumulation of amniotic fluid exceeding the normal volume for gestational age, typically due to impaired fetal swallowing or increased fetal urine production. It is often associated with fetal anomalies such as gastrointestinal obstructions (e.g., esophageal atresia), neurological disorders affecting swallowing, or maternal conditions like gestational diabetes mellitus causing fetal polyuria. The excess fluid increases uterine distension, which can lead to preterm labor, placental abruption, and malpresentation. Diagnosis is clinically significant as it may indicate underlying fetal or maternal pathology requiring further evaluation. The condition is classified as mild, moderate, or severe based on the volume of amniotic fluid. Management depends on severity and underlying cause, with close monitoring to prevent complications.

Clinical Presentation


Diagnostic Workup


Pathophysiology


Treatments


Prevention


Outcome & Complications


Differential Diagnoses


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