Which statement best describes uterine atony?

Which statement best describes uterine atony?

• A. A soft boggy poorly contracted uterus and most commonly causes early PPH
• B. A firm contracted uterus with heavy bleeding
• C. Uterine inversion
• D. A uterus with normal tone and no bleeding

Answer: (A)

Uterine atony occurs when the uterus does not contract effectively after delivery. The contracting uterus compresses the blood vessels at the placental site to prevent heavy bleeding; when contraction is poor, those vessels remain open and postpartum hemorrhage can occur. The hallmark sign is a soft, boggy uterus that remains unreliably firm. This description matches uterine atony and explains why it commonly causes early postpartum hemorrhage in the immediate postpartum period. If the uterus were firm and contracting, bleeding is less likely due to atony and would prompt consideration of other sources, such as genital tract lacerations, retained products, or placental issues. A uterus with normal tone and no bleeding is simply normal postpartum status, while uterine inversion presents as an abnormal fundal mass and distinct clinical signs.

Uterine atony occurs when the uterus does not contract effectively after delivery. The contracting uterus compresses the blood vessels at the placental site to prevent heavy bleeding; when contraction is poor, those vessels remain open and postpartum hemorrhage can occur. The hallmark sign is a soft, boggy uterus that remains unreliably firm. This description matches uterine atony and explains why it commonly causes early postpartum hemorrhage in the immediate postpartum period.

If the uterus were firm and contracting, bleeding is less likely due to atony and would prompt consideration of other sources, such as genital tract lacerations, retained products, or placental issues. A uterus with normal tone and no bleeding is simply normal postpartum status, while uterine inversion presents as an abnormal fundal mass and distinct clinical signs.