Gestational Hypertension vs. Preeclampsia: How They Differ and Why It Matters
Gestational hypertension and preeclampsia are related but distinct conditions, and confusing them leads to either under-reaction or over-reaction. Gestational hypertension is defined as blood pressure of 140/90 or higher, developing after 20 weeks of pregnancy, without significant protein in the urine or other signs of organ damage. It's elevated blood pressure caused by pregnancy itself — without the systemic involvement that defines preeclampsia. It usually resolves within 12 weeks after delivery. Preeclampsia goes further: it involves the same blood pressure threshold, but is accompanied by protein in the urine (proteinuria), low platelet count, impaired kidney or liver function, fluid in the lungs, or new-onset headache or vision changes. Preeclampsia reflects a systemic process — not just blood pressure elevation — with potential to progress to organ damage, HELLP, or eclampsia. Why the distinction matters: gestational hypertension typically requires monitoring and potentially medication, but not the urgent delivery protocols associated with preeclampsia. However, 15–25% of women with gestational hypertension will progress to preeclampsia — so it is never dismissed. Both conditions require more frequent prenatal visits, fetal monitoring, and blood pressure tracking. Women with either condition should understand their target blood pressure, know the warning signs of progression, and have a plan for when to go to the hospital. Your provider should explain which category you are in and what the management plan is.
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