Preeclampsia and eclampsia are hypertensive disorders of pregnancy characterized by new onset hypertension and proteinuria after 20 weeks of gestation. Preeclampsia can progress to eclampsia, defined as tonic-clonic seizures in a pregnant woman unrelated to other causes. Delivery is the only cure for both conditions, as termination of pregnancy resolves symptoms. Management involves controlling blood pressure, preventing seizures, monitoring the mother and fetus, and timely delivery.