This research was conducted to study all the causes leading to postpartum hemorrhage in order to implement all the appropriate treatments, according to all reason and thus avoiding the complications of postpartum hemorrhage and death, and study of the risk of bleeding factors in order to reach the best method of prevention of bleeding . This research included on 77 patient acceptable in Al Assad University Hospital in Lattakia, with primary postpartum hemorrhage occurred after vaginal delivery, including (12) patient after vaginal birth outside the hospital, during the extended study period: from 1/1/2014 until 1/1 / 2016, and excluded all patients who were born cesarean delivery. We determine the percentage of postpartum hemorrhage occurring between vaginal deliveries in the hospital, and the ratio was (3.52%), and we could not determine this percentage outside the hospital.