What does a complete effacement of the cervix signify?

Complete effacement of the cervix refers to the full thinning and shortening of the cervix as it prepares for the passage of the baby during labor. When the cervix is 100% effaced, it means that it has thinned out completely, creating a smooth birth canal. This is an important stage in labor, as effacement occurs alongside dilation, which is the opening of the cervix.

The process of effacement is essential for ensuring that the cervix can accommodate the baby during delivery. Therefore, when effacement reaches 100%, it indicates that the cervix is fully prepared and no longer has a substantial thickness. This stage allows for smooth progression into the next phase of labor, which involves dilation to 10 centimeters.