Preterm rupture of membranes in the third trimester of pregnancy is the best option for induction of labor. Premature rupture of membranes refers to the natural rupture of membranes before labor, including premature rupture of membranes at term (<37 weeks) and at term (≥37 weeks). In preterm rupture of membranes, the vagina of pregnant women will suddenly discharge a large amount of fluid, which will increase when the abdominal pressure increases, and the vulva will feel wetter than usual. Preterm premature rupture of membranes at less than 24 weeks of gestation is associated with lower fetal viability and a higher risk of maternal-fetal infection, making induction of labor the preferred option. For those who are 24 to 27+⁶ weeks of gestation, the doctor will decide whether to induce labor according to the wishes of the pregnant woman and her family, and the ability to resuscitate the newborn. In the case of premature rupture of membranes at 34 to 36+⁶ weeks of gestation, the pregnancy is terminated immediately if there are clinical signs of infection or fetal lung maturation. Therefore, pregnant women with preterm rupture of membranes should seek immediate medical attention and undergo active and standardized treatment under the guidance of a doctor.