Recurrent maternal fevers may be related to puerperal infections. Generally, fevers from 24 hours to within 10 days after delivery are mostly considered puerperal infections because the woman’s physical strength is poorer than usual, there is bleeding and the uterine opening is loose, so both the original bacteria in the vagina and foreign bacteria can easily invade the body, leading to recurrent fevers. In addition, mothers are prone to respiratory tract infections due to excessive fatigue from childbirth, decreased resistance, or catching a cold or flu after delivery, which can be accompanied by symptoms such as nasal congestion, sore throat and coughing, in addition to fever.