<unk>  is the failure of the uterus to contract adequately following delivery. Contraction of the<unk>  muscles during labor compresses the blood vessels and slows flow, which helps prevent hemorrhage and facilitates coagulation. Therefore, a lack of<unk>  muscle contraction can lead to an acute hemorrhage, as the vasculature is not being sufficiently compressed.<unk>  is the most common cause of postpartum hemorrhage, which is an emergency and potential cause of fatality. Across the globe, postpartum hemorrhage is a top 5 causes of maternal death. Recognition of the warning signs of<unk>  in the setting of extensive postpartum bleeding should initiate interventions aimed at regaining stable<unk>  contraction.
Uterine atony
Uterine inversion
Obstetric transition
Uterine hyperstimulation
Uterine perforation
Septic abortion
Obstructed labour
Uterine rupture