How do you get dilated from 3 cm to 4 or 5 cm?

Cervical dilation from 3 cm to 4 or 5 cm typically occurs during the active phase of labor as the body prepares for childbirth. This process is facilitated by regular contractions of the uterus, which help to thin and open the cervix. Hormonal changes, particularly the release of oxytocin, also play a crucial role in increasing contraction intensity and frequency. Factors such as the baby's position and maternal health can influence the rate of dilation.