After premature rupture of membranes, because the amniotic cavity is open, some pathogens can cause intrauterine infections through ascending infections. If an infection occurs after premature rupture of the membranes, the harm caused mainly affects the mother and fetus, divided into the following two aspects: First, the impact on the fetus is that it is easy for the fetus itself to become infected, which can lead to congenital neonatal infections after birth, and in severe cases, it may cause fetal death. Second, it can cause maternal infection. If the infection is only limited to the amniotic cavity, sometimes the impact on the mother is not significant. However, if the infection spreads locally, such as into the pelvic cavity, or spreads through the bloodstream, it can cause a systemic inflammatory response, sometimes causing high fever, and in severe cases, it can lead to septic shock.