Introduction: Obstetric complications are an important cause of maternal morbidity and mortality, with prenatal control (PNC) being a strategy for their adequate prevention and treatment. Objective: To determine the association between adequate CPN and peripartum and postpartum maternal obstetric complications. Methodology: Quantitative, observational, retrospective, cross-sectional and analytical study, based on information from the ENDES 2017-2019. Results: A sample of 41,803 mothers was analyzed, 21,0% and 28,7% had peripartum and postpartum complications respectively, furthermore, it was found that not having a quality NPC (PR = 1.20; 95% CI = 1.14-1.27), residing in metropolitan Lima (PR = 1,38; 95% CI = 1,27-1,49) or in the mountains (PR = 1,25; 95% CI = 1,18-1,33), belong to wealth quintile two (PR = 1,13; 95% CI = 1,04-1,22) or three (PR = 1,11; 95% CI = ...