“…Severe PPH is less common, but is a significant contributor to maternal morbidity and the deaths of an estimated 75,000–100,000 women worldwide each year [3,4]. Multiple studies have evaluated the underlying risk factors and causes for PPH [5,6,7,8,9]. Factors which have been associated with severe PPH include placental abruption, placenta previa, multiple gestation, retained placenta (including placenta accreta), cervical or vaginal lacerations, episiotomy, fetal macrosomia, maternal obesity, induction of labor, prolonged or rapid delivery, high parity, history of uterine atony in a prior pregnancy, chorioamnionitis, uterine inversion, and uterine rupture [10].…”