It is best not to breastfeed if you have a fever. It is best to suspend breastfeeding for a while if the mother has a fever during the breastfeeding stage. When you have a fever, the body is likely to be infected with viruses or bacteria, causing inflammation in the body. If breastfeeding at this time, there is a possibility that the virus or bacteria will be passed to the baby through the breast milk, causing the baby to develop a similar disease. In addition, when the mother has a fever, her body temperature is high, and her breast milk is easy to deteriorate under the high temperature environment. Moreover, if she has taken medication to treat the fever situation, it is possible that the ingredients of these medications will be passed through the breast milk to the baby, resulting in affecting the baby’s growth and development. It is important to actively treat the fever and consider breastfeeding after it is under control, and during this time you can feed the baby with formula milk to avoid affecting the baby. For specific cases, a doctor’s consultation is required.