Usually, the water breaks within 24 hours and the labor and delivery will begin. Usually the onset of pain after the water breaks is due to uterine contractions, and the occurrence of regular uterine contractions indicates labor. Normally, uterine contractions occur within 24 hours after the water breaks, but it takes about 12-18 hours after the contractions to deliver the fetus. If the amniotic fluid rupture occurs when the opening of the uterus is about 7 cm, in this case, the pains appear before the rupture of the amniotic fluid, and the fetus is usually delivered about 2-3 hours after the rupture of the amniotic fluid. If the uterine contractions do not occur 24 hours after the water breaks, then appropriate measures should be taken to induce contractions to facilitate delivery. Since there is a risk of umbilical cord prolapse and fetal hypoxia after the water breaks, when the water breaks, the pregnant woman should absolutely rest in bed with her hips elevated and go to the hospital obstetrics and gynecology department in time to be treated by a professional doctor.