More than 1 year old baby suddenly fever without runny nose and cough, may be caused by physiological factors, at this time without special treatment; may also be the early stages of disease, such as acute gastroenteritis, otitis media and other diseases, need to find the cause of the disease and targeted treatment. At the same time need to carry out heat treatment. 1. Physiological factors: the baby’s temperature may be due to breastfeeding, after meals, exercise, crying, too thick clothing, high room temperature and emotional fluctuations and other factors, the baby did not coughing, vomiting and other discomforts, this time no special treatment, need to continue to observe, dynamic temperature detection. 2. Acute gastroenteritis: acute inflammation of the gastrointestinal mucosa caused by various reasons, in the early stage of the disease can also appear only fever without other manifestations, can take less food, increase nutrient intake and other ways to alleviate the problem, but also can be applied to bifidobacteria, clostridium casei, and other probiotics to regulate the intestinal flora, to improve the function of the intestinal tract. 3. Otitis media: It is an infection in the middle ear, especially in children. Clinical manifestations are earache, watery discharge from the ear, accompanied by high fever, vomiting and other symptoms. Erythromycin, cefuroxime and other drugs can be used for treatment. For children with fever but temperature <38.5℃ can use physical cooling; for children with temperature ≥38.5℃ also need to use antipyretic drugs such as ibuprofen, acetaminophen and other antipyretic treatments under the guidance of doctors. More than 1 year old baby suddenly appeared fever not runny nose not coughing symptoms, to the hospital in a timely manner, improve the relevant examination to clarify the cause of the disease, under the guidance of the doctor symptomatic treatment, to avoid unauthorized use of medication.