Gestational hypertension is also called pregnancy-induced hypertension (PIH). Gestational hypertension affects 6-8% of all pregnant women, and is characterized by high blood pressure that develops after 20 weeks of pregnancy and goes away after delivery. Gestational hypertension is diagnosed when blood pressure is taken at prenatal visits with a physician. The health impact of gestational hypertension depends on when it is diagnosed and how high the individual's blood pressure is. 1 in 4 women with gestational hypertension may go on to develop preeclampsia, while others may need to have a cesarian section (c-section) or be induced (when medication is given to start labor). Most women with gestational hypertension will have a normal pregnancy, through increased prenatal doctor's visits, rest, decreased salt intake and lots of fluids will be important.