Breastfeeding mothers have a hectic life, and their rest time is tossed around by their babies, so they are overly tired and anxious, plus their bodies are weak after delivery, which makes mothers easily get sick, and a cold and fever is one of the common symptoms. In fact, there is no need to be overly anxious as most doctors recommend that breastfeeding can be continued. There are many factors that can cause fever, and fever is only one of the manifestations. The most common causes of fever during breastfeeding are acute upper respiratory tract infection, common cold or flu caused by bacteria and viruses. Breastfeeding generally does not cause disease, but on the contrary, breast milk contains specific antibodies against cytomegalovirus, which is sufficient to protect the baby. In general, breastfeeding is allowed as long as the mother feels strong and experienced, but there are special cases where breastfeeding should be suspended: for example, fever due to diagnosed tuberculosis, where it is best to stop breastfeeding while undergoing treatment; fever due to AIDS; or when the herpes virus has invaded the nipples or breasts. Except for some special cases, breastfeeding can be continued in most cases, but this requires the help of a medical professional. In most cases, breastfeeding can be continued as long as the mother is physically and mentally able to tolerate it, but only in a few cases does breastfeeding need to be suspended.