Fever after embryo transfer may be normal, related to changes in hormone levels in the body, or abnormal, such as upper respiratory tract infections, intrauterine infections and other diseases caused by. After embryo transfer, women will use progesterone to increase progesterone in the body, and the increased level of progesterone can promote the development of the embryo, and can also act on the female thermoregulatory center, so that the female body temperature rises, and the measured temperature may have a low-grade fever, which is a normal phenomenon. Part of the female embryo transplantation after the rejection reaction, there will also be an increase in body temperature performance, generally not more than 38 ℃, these physiological causes of fever is normal, no more than 38.5 ℃ without special treatment. Fever after embryo transfer, in addition to physiological reasons, may also be caused by diseases, such as upper respiratory tract infection, intrauterine infection and other reasons, the upper respiratory tract by bacterial and viral infections caused by local inflammation, or even systemic inflammation, there will be fever after embryo transfer, this is not normal. Improper operation in the process of embryo transfer, triggered by intrauterine infection after the invasion of pathogenic bacteria, stimulated by inflammation, may be the manifestation of elevated body temperature, women will also have fever, this situation is also not normal. Whether the fever after embryo transfer is normal or not, go to the hospital through the examination to understand, and then targeted treatment.