What begins the third stage of labor?

The third stage of labor is initiated by the delivery of the neonate. This stage follows the expulsion of the baby, during which the placenta is delivered. The transition from the second to the third stage marks a significant moment in the birthing process, as it represents the completion of one of the most critical aspects of childbirth – the birth of the baby.

After the neonate is delivered, the body undergoes various physiological changes that trigger the subsequent contractions and processes leading to the separation and expulsion of the placenta. Understanding this sequence is important in obstetrical practice, as it helps healthcare professionals monitor the mother and newborn effectively and manage the care during this transitional phase.

Delivery of the amniotic sac and the initial contractions occur earlier in the labor process. The separation of the placenta is essential, but it comes after the baby is born and thus cannot be the event that starts the third stage of labor.