Fever may or may not occur during the breastfeeding period, and each woman’s body condition is different, as follows: First, some women have fever symptoms during the breastfeeding period due to high milk secretion, resulting in blocked mammary glands, which is a relatively normal physiological reaction. If you have a fever, it is recommended that you have timely treatment to prevent the situation from becoming more serious. You can use a towel to warm your breasts and squeeze out the milk in moderation, but it is best not to squeeze it out completely to avoid increasing milk secretion, or you can take milk returning drugs, such as vitamin B6. Secondly, some women have less milk and do not experience any breast swelling or breast pain during the milk return process, so it will not cause fever problems. However, in the process of returning milk, you must pay attention that it is better not to eat soup-like things often, so as not to cause more milk.