In addition to swelling, protein in the urine, and high blood pressure, preeclampsia symptoms can also include rapid weight gain due to a significant increase in bodily fluid, abdominal pain, headaches, and change in reflexes.

Blood pressure that exceeds 140/90 millimeters of mercury (mm Hg) or greater and documented on two occasions, at least four hours apart is considered abnormal. This is one of the common signs of pre-eclampsia in pregnant women.