Objectives: To determine the incidence, associated factors and outcomes of obstetrical hysterectomy. Design: Retrospective, descriptive, analytical and cross-sectional study. Setting: Hospital Nacional Docente Madre Niño San Bartolome, Lima, Peru. Material: Clinical records of 69 patients who underwent obstetrical hysterectomy (OH) performed between January 1, 2003, and December 31, 2015. Methods: Odds ratio was applied as measure of association, and Excel 2013 and SPSS programs were used for statistical analysis. Main outcome measures: Incidence, associated factors and outcomes of obstetrical hysterectomy. Results: OH rate was 0.69/1 000; 82.6% followed cesarean section delivery (1.94/1 000), OR cesarean section/vaginal delivery was 19.91; 65.2% were multiparous women aged 35 or less, 78.2% with prenatal control. Main diagnoses were placenta previa (27.5%) and previous cesarean section...