gynecology and obstetrics
Postpartum Hemorrhage
Etiology of Postpartum Hemorrhage
Themost common cause of postpartum hemorrhageis Uterine atony Risk factors for uterine atonyinclude Uterine overdistention (caused by Multifetal Pregnancy , Protracted Labor or dysfunctional labor Grand multiparity (delivery of ≥ 5 viable fetuses) Relaxant anesthetics Rapid labor Intraamniotic Infection (chorioamnionitis) Other causes of postpartum hemorrhageinclude Lacerations of the genital tract Extension of an Delivery of the Fetus None Uterine Rupture None Excessive Bleeding None Retained placental tissues Hematoma Uterine Inversion None Intra-amniotic infection Subinvolution (incomplete involution) of the placental site (which usually occurs early but may occur as late as 1 month after delivery) Uterine Fibroids may contribute to postpartum hemorrhage. A history of postpartum hemorrhage may indicate increased risk. 