How long after the artificial breaking of the water can be delivered is determined by the labor process. Usually, natural contractions can occur 1-2 hours after the artificial breaking of the membranes at full term, and it should be noted that it is better to deliver within 24 hours after the artificial breaking of the water. The frequency, intensity and duration of the contractions and the dilatation of the cervical opening should be used as a basis for determining how long it takes to deliver after the water has broken. If the water breaks when the opening of the uterus is 1-3cm, it belongs to the latent period, and it takes about 8 hours for the latent period to enter the active period, and about 4 hours for the active period to the opening of the uterus, and about 1-2 hours for the opening of the uterus to give birth, so it takes more than 10 hours for the latent period to break the water to give birth. If the opening of the uterus is more than 3 cm when the water breaks, it means that the uterus has entered the active stage, and it takes about 5-6 hours to go into labor. In addition, after artificial rupture of membranes, attention should be paid to monitoring the fetal heartbeat. If labor does not start within 24 hours after rupture of membranes, the fetus is prone to hypoxia or intrauterine infection, and induction of labor can be considered.