HEALTH | MEDICAL | BIOLOGY on Instagram: "During normal vaginal delivery, the cervix (mouth of the uterus) slowly opens from 1 cm to 10 cm, which is called cervical dilation. From 1–3 cm, the cervix starts softening and opening, and contractions are usually mild and irregular (early labor). From 4–7 cm, this is active labor—contractions become stronger, closer together, and the cervix opens faster. From 8–10 cm, called the transition phase, contractions are very strong and intense, and the cervi