An overview of obstetric hemorrhage.

Obstetric hemorrhage is the leading cause of maternal morbidity and mortality in the world. Disparities in the prevalence of obstetric hemorrhage and its related mortality both on a global scale and locally in the United States indicate that a significant proportion is preventable. In many parts of the world, including the United States, there has also been an unexplainable increase in rates of postpartum hemorrhage. Efforts should focus on implementing comprehensive hemorrhage toolkit/bundles, which research has shown may have the potential to reduce severe maternal morbidity from hemorrhage.