Disclosed are devices for reducing postpartum hemorrhage, including a belt having a fastener for securing the belt around a patient's body, a bladder being inflatable with air and adapted to be placed over the patient's abdomen for applying selective external pressure to the patient's uterus, a manual pump operably connected to the bladder to change air pressure of the bladder, and a pressure gauge for indicating the air pressure. Methods for using the devices are also disclosed.