The longer the third stage of labor lasts, the higher the risk for which complication?

The duration of the third stage of labor, which involves the delivery of the placenta after the birth of the baby, is critical in assessing the risk of complications. If this stage is prolonged, one of the primary concerns is significant hemorrhage. This is because the longer the uterus remains contracted and the placenta is attached, the greater the chance of blood vessels tearing, especially if the placenta is not delivered efficiently.

Proper uterine contraction following the delivery of the baby is essential to control bleeding. If the third stage is prolonged, it may indicate inadequate uterine tone or failure of the uterine muscle to contract effectively. This ineffective contraction can lead to uterine atony, a leading cause of postpartum hemorrhage, which poses serious risks to maternal health.

While exhaustion can occur during prolonged labor, and while there are risks for lacerations and rupture under certain circumstances, they are not as directly associated with the duration of the third stage as hemorrhage is, making hemorrhage the most significant complication linked to a longer third stage.