A small number of infants with teething may have recurrent fevers, but recurrent fevers may also be related to other factors, such as acute upper respiratory tract infections and Kawasaki disease. Most infants do not cause fever when teething, but infants may experience other discomforts when teething, such as swollen and itchy gums, etc. There are a few infants who experience bacterial infections at the site of rupture when teething, which causes fever, generally known as teething fever, which is not very serious and mostly recurrent low-grade fever. Repeated fever in infants can also be seen in infectious diseases, such as acute upper respiratory tract infections, pneumonia, tonsillitis, etc., often accompanied by coughing, runny nose, coughing up phlegm and other symptoms. It can also be caused by other reasons, such as Kawasaki disease and leukemia. If an infant has recurrent fevers, he or she should be seen by a hospital in a timely manner to find out the cause and get targeted treatment.