Puerperal infections are very harmful to the mother’s body and have a negative impact on the feeding of the newborn, and are one of the causes of maternal mortality. Its incidence is 1%-7.2%, so how to prevent puerperal infection is crucial for the baby moms. What causes puerperal infections? There are more reasons for puerperal infections, for example, not strictly sterilized during delivery, which brings germs into the vagina, or the presence of inflammatory lesions in other parts of the mother’s body such as the respiratory tract and urinary tract, which can also invade the vagina through the hands and the blood circulation, resulting in infections. In addition, due to the damage to the uterus, cervix and vagina during labor and delivery, the mother’s physical exertion is too great, her body is weak and her resistance is poor, which also creates the conditions for puerperal infections; moreover, if you have sex or take a tub bath or vaginal douche before giving birth, and if you don’t pay attention to your personal hygiene after giving birth, it may also cause puerperal infections. To prevent puerperal infections, attention should be paid to prevention, pay attention to the following points: 1, pay attention to personal hygiene, moderate increase in nutrition, drink more water. Prevention should start from pregnancy, pay attention to personal hygiene during pregnancy, pay attention to vaginal discharge, odor and itching, and actively treat vaginitis and other parts of the infection; 2, such as premature rupture of membranes, prolongation of labor, postpartum hemorrhage, etc., should be timely use of antibiotics to avoid systemic infections, which may lead to puerperal infections; 3, in the late stages of pregnancy and the post-partum period of 42 days, to avoid sexual intercourse and pot bath, swimming, bath and other behaviors; 3, in the late stages of pregnancy and 42 days after delivery, to avoid sex and tub baths, swim, baths and other behaviors. Avoid sexual intercourse, tub baths, swimming and bathing during late pregnancy and 42 days postpartum; 4. Ensure nutritional intake, give a high-protein, high-fiber diet, and ensure sufficient fluid intake; 5. Keep close records of post-partum temperature, discharge and pain, and help mothers take good care of the perineum and keep the vulva clean.