What condition is identified as the most common cause of postpartum hemorrhage?

Uterine atony is identified as the most common cause of postpartum hemorrhage due to the failure of the uterus to contract adequately after delivery. After childbirth, the uterus needs to contract to close off the blood vessels that were attached to the placenta. If the uterus remains relaxed or atonic, it cannot effectively control bleeding, leading to significant blood loss. This condition accounts for the majority of cases of postpartum hemorrhage, emphasizing the importance of uterine tone assessment immediately following delivery.

In clinical practice, managing uterine atony often involves the use of medications such as oxytocin to promote uterine contraction and, in some cases, providing manual massage of the uterus. Being aware of this condition is crucial for healthcare providers, as timely intervention can prevent severe complications associated with significant blood loss after childbirth.