What event characterizes stage 2 of labor?

Stage 2 of labor is defined by the active pushing phase, during which the mother experiences strong and regular uterine contractions that lead to the delivery of the infant. This stage begins after the cervix is fully dilated to 10 centimeters and continues until the baby is born. The intensity and frequency of the contractions play a significant role in this process, as they help move the baby down the birth canal.

During this stage, the mother's efforts in bearing down in conjunction with the contractions are crucial in facilitating the descent and eventual delivery of the baby. This is the moment when the culmination of the labor process occurs, resulting in the arrival of the newborn.

The other events mentioned focus on different stages of labor or potential complications rather than the successful delivery of the infant itself.