The prevention of premature rupture of membranes primarily involves preventing infection. This is because the main cause of premature rupture of membranes is likely due to infection, though it can also be due to pelvic issues and irregular uterine contractions that stimulate the rupture. Therefore, those with a history of premature rupture of membranes should undergo relevant examinations early in pregnancy and receive prenatal care routinely, including tests for vaginal secretions. Even if one feels no discomfort, it is advisable to conduct an examination for vaginal pathogens and, if necessary, begin medication early. (Medication should be used under the guidance of a professional doctor.)