Placenta accreta spectrum, formally known as morbidly adherent placenta, refers to a range of pathologic adherence of the placenta (accreta, increta, and percreta). There is significant risk of maternal morbidity and mortality including risk of blood transfusion, life-threatening hemorrhage, and hysterectomy. In this session, we will review the obstetric care consensus by the ACOG and SMFM regarding this condition (obstetric care consensus # 7).