Can Preeclampsia Cause Autism

October 15, 2025

Preeclampsia is a pregnancy complication characterized by high blood pressure and organ damage. Some research has found a modest association between preeclampsia and slightly increased autism risk, though the relationship is not straightforward.

What Research Shows

Several large studies have found that children born to mothers who had preeclampsia have a slightly elevated risk of autism. However, preeclampsia often leads to preterm birth and low birth weight, which are independent risk factors for neurodevelopmental conditions, making it difficult to isolate preeclampsia as a direct cause.

Possible Mechanisms

  • Placental insufficiency may reduce oxygen and nutrients to the developing brain
  • Inflammation associated with preeclampsia could affect fetal brain development
  • Shared genetic factors may predispose to both conditions

What This Means

Preeclampsia is a medical emergency requiring treatment regardless of autism concerns. Follow your healthcare provider s recommendations. If your child is later diagnosed with autism, effective therapy is available.

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