Preeclampsia is the development of swelling, elevated blood pressure, sudden and rapid weight gain and protein in the urine during pregnancy. The exact cause is unknown, but it occurs in approximately 5% of the population.
Review Date: 2/8/2013 Reviewed By: Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Bellevue, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, Bethanne Black, Stephanie Slon, and Nissi Wang.