clampsia Wikipedia Preeclampsia WikipediaChinese2019114 ensp 0183 enspPreeclampsia PE is a disorder of pregnancy characterized by the onset of high blood pressure and often a significant amount of protein in the urine 1 8 When it arises the condition begins after 20 weeks of pregnancy 2 3 In severe disease there may be red blood cell breakdown a low blood platelet count impaired liver function Signs and symptoms ensp 0183 ensp