Preeclampsia is an important problem of public health, leads among the main causes of mortality and morbidityworldwide. There are many patho-psychological abnormalities of preeclampsia, but its etiology is poorly known. Aim.The study intends to find out the possibilities and limitations in diagnosing and treating this disease. The objective of thisstudy was to establish that the C reactive protein is an efficient marker of preeclampsia and it correlates significantly withthe severity of this disease. Material and method. The patients were selected from the pregnant women who werehospitalized in ”Cuza Vodă” Iaşi Clinical Hospital of Obstetrics and Gynecology (n=82), in the period of time between2003 and 2012, with a gestational age of over 20 weeks, and who came here for a speciality consult. The study wasretrospective and case-control type; it was focused on the clinical-progressive aspects of preeclampsia, by checking thecorrelation of inflammatory parameters with blood pressure for a lot of pregnant women with preeclampsia, incomparison with a lot of normal pregnant women. Results. The severe forms of preeclampsia can be found in older age(25-43 years old), with an average around 37 years old (p=0.02). According to the cases studied, the severity ofpreeclampsia was noticed for average values of blood pressure of about 155 mmHg (p<0.001). The average values of Creactive protein were significantly higher for women with severe preeclampsia (89.14 ± 51.31 mg/l) (p<0.001).Conclusions. The severe forms of preeclampsia represent a major cause for maternal morbidity and mortality, especiallyin the complicated cases with HELLP syndrome and acute pulmonary edema, cerebral hemorrhage, acute respiratoryinfections, cuoagulopathy.