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Preeclampsia is a disease of pregnancy that manifests after 20 weeks. Its diagnosis is determined by hypertension plus proteinuria, establishing severity with: blood pressure ≥ 160/110 mmHg, symptoms and signs of vasospasm or paraclinical alterations. The University Hospital of Neiva is the main reference center in the Colombian South, where preeclampsia is a reason for referral. We don ́t have a study that allows us to know the clinical and paraclinical characteristics and their association with the maternal outcomes of pregnant women with severe preeclampsia. Methodology: Descriptive observational study of cross-sectional cohort. Characterized clinical and paraclinical variables and their association with the main maternal outcomes. Results: 334 mothers with a singleton pregnancy and severe preeclampsia were included. 77.6% were between 17 and 34 years old, 97.6% in strata 1 and 2, urban origin in 78% and 65.3% multi-pregnant. In addition, 60.8% with obesity. Regarding paraclinical findings, 35.9% with positive proteinuria, 5% thrombocytopenia, elevated serum creatinine (5%), 27% with elevated transaminases and elevated lactic dehydrogenase (3.6%). 55.6% had a preterm pregnancy and 90% of them were terminated by caesarean section. Complications were hypertensive crisis in 59%, acute kidney injury (5%), HELLP syndrome (3.6%), eclampsia (1.2%), and disseminated intravascular coagulation (1.2%). Conclusion: A population with socioeconomic vulnerability was evidenced, aged between 17 and 34 years, mainly obese, with late presentation of the disease; highlighting the development of hypertensive crisis, elevation of transaminases and completion route by cesarean section.