Preoperative treatment of iron deficiency anemia was associated with a decrease in morbidity and mortality. IV iron therapy should be used in cases where oral iron therapy is insufficient or the time before operation is limited. It should always be kept in mind that pregnant women can develop peripartum cardiomyopathy (PPCMP) in the intraoperative or postoperative period, even if they do not have clinical symptoms in the preoperative period. With this case report, we aimed to discuss the pregnant patient who has placental invasion anomaly, who developed sudden CMP during cesarean operation, and we applied intravenous iron therapy for the treatment of peroperative anemia in the light of current literature.