The duration of puerperal sweat varies from one pregnant woman to another, and in general, puerperal sweat can last from six months to a year. During pregnancy, women need to provide nutrition and water to the fetus, and changes in the level of hormone secretion in the body can cause the body to accumulate too much fluid, which is gradually discharged after delivery by sweating and urination, which is called puerperal sweating. Most postpartum sweating is normal if it is not accompanied by other symptoms. The duration of excretion varies from one woman to another and lasts for six months to a year in most cases. Some women sweat faster and may finish sweating in 10 days or so, so the duration of puerperal sweat is short; on the contrary, the duration of puerperal sweat is longer in pregnant women who sweat more slowly. Since the mother’s body loses water during puerperal sweat, it is recommended to replenish water in an appropriate amount, open the windows and ventilate, and pay attention to strengthening nutrition and a balanced diet, so that breastfeeding will not be affected during this period.