1-year-old baby gums red, swollen and fever need to identify the cause of the disease, may be caused by teething, generally do not need special treatment; may also be caused by gingivitis, children’s oral herpes, etc., need to be under the guidance of the doctor to carry out targeted treatment, such as drug therapy. 1. Teething: the baby may appear slight gum redness and swelling, low fever (37.3 ℃ ~ 38 ℃) symptoms, generally do not need special treatment; can be given to the baby warm water bath, pay attention to keep the baby’s oral hygiene, observation of the baby’s condition can be changed. 2. Gingivitis: the baby may appear periodontal pus, gums red and swollen, and even fever and other symptoms. Local rinsing can be done, and if necessary, the local inflammation can be eliminated by anti-infective drugs, such as metronidazole. 3. Oral herpes in children: mainly related to herpes simplex virus infection, children may have fever and other symptoms, the oral cavity (especially the location of the gums) may appear herpes-like lesions. When the disease is serious, anti-viral oral solution and other drugs can be chosen to treat. However, other factors can not be ruled out, it is recommended that parents bring their children to the doctor for timely consultation, the doctor to give targeted treatment, the child’s tolerance to drugs is weak, parents should not blindly give their children medication.