How long it takes to deliver after the water breaks depends on the week of pregnancy and whether the water breaks before or during regular contractions. In the case of a full-term baby, if no contractions are initiated at the time of water breakage, labor is usually spontaneous within 12 hours, and no later than 72 hours. If the water breaks during labor, a strong contraction will occur after the water breaks into the second stage of labor, usually within 3 hours for primiparous women and within 2 hours for menstruating women, and then the birth will occur spontaneously. For cases where water rupture occurs at less than 34 weeks of gestation, if there is less amniotic fluid outflow, no fetal hypoxia and no intrauterine infection, treatment such as suppression of contractions and promotion of fetal lung maturation can be performed to preserve the fetus until 34 weeks and then end the delivery. In addition, in the case of ruptured amniotic fluid in either a full-term or a non-full-term baby, it is necessary to go to the obstetrics and gynecology department of the hospital immediately to treat the pregnancy according to its specific condition.