During what week of pregnancy can preeclampsia occur?

Preeclampsia is a condition characterized by high blood pressure and signs of damage to other organ systems, often the kidneys, occurring after the 20th week of pregnancy. This timing is crucial because preeclampsia is generally associated with the latter half of pregnancy, particularly the third trimester. Although hypertension can develop before the 20th week, this would not typically be classified as preeclampsia unless certain criteria are met.

The condition is most commonly seen during the 20th to 40th week timeframe. Understanding that it usually manifests in this period highlights the importance of close monitoring of blood pressure and other symptoms in expectant mothers during this critical phase of their pregnancy. Thus, recognizing that preeclampsia can occur any time after the 20th week up until delivery is essential for proper prenatal care and management.