Gestational hypertension is an academic concept and research area within maternal-fetal medicine focused on the study of new-onset hypertension occurring after 20 weeks of gestation without associated proteinuria or pre-existing hypertensive disease. Research in this field investigates its incidence, risk factors, underlying mechanisms, clinical course, management strategies, and the associated maternal and perinatal morbidity and mortality, highlighting its significance as a major complication of pregnancy.