Which stage of labor is characterized by complete dilation of the cervix?

The stage of labor characterized by complete dilation of the cervix is the second stage. During this phase, the cervix is fully open at 10 centimeters, allowing the baby to descend through the birth canal. This stage begins once dilation is complete and continues until the baby is born. It involves intense contractions that facilitate the pushing process, allowing the mother to actively participate in the delivery.

The first stage of labor is primarily focused on the gradual dilation of the cervix, progressing through early and active labor until it reaches full dilation. The transition phase is a part of the first stage, just before the second stage, marked by rapid cervical changes and often intense discomfort. Finally, the fourth stage of labor refers to the recovery period following the delivery of the placenta, focusing on maternal physiological changes and attachment processes. Therefore, the second stage is specifically identified by the completion of cervical dilation and the descent of the fetus into the birth canal.