Cervical dilation is the process by which the cervix, the lower part of the uterus, opens to allow for childbirth. During labor, the cervix gradually expands from a closed position to about 10 centimeters in diameter, which is necessary for the baby to pass through the birth canal. This dilation is measured in centimeters and is a key indicator of labor progress. The process of cervical dilation is influenced by various factors, including hormones and the strength of uterine contractions. As contractions become more frequent and intense, they help to soften and open the cervix. Monitoring cervical dilation is essential for healthcare providers to assess the readiness for delivery.