Premature rupture of membranes refers to the rupture of the amniotic sac before labor begins. The severity of premature rupture of membranes primarily depends on the gestational week when the rupture occurs, as well as whether there are complications such as intrauterine infection or fetal distress. First, for term premature rupture of membranes, which occurs after 37 weeks, the fetus is relatively mature and larger in size; therefore, this condition is not considered severe, and prompt delivery is usually sufficient. Second, for preterm premature rupture of membranes, since the maturity of the fetus is not high and the size is relatively small, there is a higher risk of preterm birth which makes this situation more risky. Third, premature rupture of membranes can easily lead to fetal intrauterine hypoxia or intrauterine infection. If these two conditions occur, it indicates a more serious situation, and pregnancy should be terminated promptly to prevent further deterioration of the condition.