Objectives: To determine if urinary tract infection (UTI) during pregnancy is a risk factor for preeclampsia at the Hospital Belén de Trujillo between 2017-2020. Materials and Methods: An observational, retrospective, analytical case-control study was conducted, which included 102 pregnant women with more than 20 weeks of gestation attended at the Hospital Belén de Trujillo. Two groups were compared: one with preeclampsia and the other without preeclampsia, matched in a 1:2 ratio. The Chi-square test was used to analyze the data, considering significance if the p-value was <5% (p < 0.05). Results: It was found that 79.4% of patients with preeclampsia had a history of UTI during pregnancy, while only 38.2% of the pregnant women in the control group had it. Urinary infection was significantly associated with preeclampsia (OR: 6.2, 95% CI 2.375–16.346, p= 0.000), indicating that p...