What is defined as excessive bleeding following childbirth?

Postpartum hemorrhage is defined as excessive bleeding following childbirth and is a significant concern in obstetric care. It is typically categorized into early (occurring within the first 24 hours after delivery) and late (occurring more than 24 hours but less than six weeks postpartum) forms. This condition can arise from several factors, including uterine atony (lack of muscle tone in the uterus), retained placental fragments, and lacerations of the birth canal. The timely identification and management of postpartum hemorrhage are crucial, as it can lead to severe complications or even maternal mortality if not addressed promptly.

In contrast, other terms listed refer to different conditions related to pregnancy or childbirth. Placenta previa involves the placenta covering the cervix, which can cause bleeding during pregnancy but is not defined specifically as postpartum hemorrhage. Gestational hypertension relates to high blood pressure that develops during pregnancy and doesn't specifically pertain to bleeding. Chorioamnionitis is an infection of the amniotic fluid and membranes, affecting the fetus and mother but is not indicative of bleeding following childbirth. Understanding these distinctions highlights why postpartum hemorrhage is the correct term for excessive bleeding in the context of the question.