Fever is fever, refers to the role of pyrogen or some reason caused by dysfunction of the thermoregulatory center, the body temperature rises beyond the normal range. 7 months baby temperature 37.5 ℃ may be a normal phenomenon, but also may be a pathological fever. Fever is one of the most common clinical symptoms of pediatrics, pediatric body temperature center is not well developed, body temperature can be affected by a variety of factors, such as breastfeeding, after meals, exercise, crying, too thick clothing, high room temperature and emotional fluctuations, etc. can make the body temperature slightly as high as 37.5 ℃ or so; such as just an individual once the body temperature reaches 37.5 ℃, the body is in good condition, there is no self-awareness of the symptoms, is not a pathological state. If in a quiet state, repeated multiple measurements of body temperature is still 37.5 ℃, accompanied by nasal congestion, sneezing, runny nose, cough, diarrhea, vomiting and other symptoms, generally considered a pathological fever, should be early medical care. Low-grade fever can generally be treated by applying warm water externally to the child’s forehead, warm baths, reducing the amount of clothing worn, antipyretic patches, antipyretic blankets, fans and lowering the room temperature. There are many causes of fever in babies, and the cause should be clarified by the doctor and targeted treatment or therapy should be given to avoid delaying the condition.