What are the four most common types of postpartum hemorrhage?

Hmmm....: The most common cause of postpartum bleeding is the discharge of lochia, the blood, mucous and uterine tissue left over after childbirth. It's perfectly normal & usually lasts 4-6 weeks. If the uterus fails to contract down normally iserious bleeding can occur b/c the uterine vessels are still dilated. Injuries to the uterus & cervix and retained placental tissue can also cause bleeding.

"Four" thought: 1.) Failure of uterine involution.(needs Pitocin) 2.) Cervical or vaginal laceration 3.)Retained placental tissue 4.) Blood clotting problems( low platelets,DIC, hemophilia,etc.)