Summer baby temperature 37.4 ℃ may be normal physiological fever, may also be abnormal such as infection fever. The summer weather is hot and the body temperature regulation function of young children is not sound, it is recommended to retest after adjusting the baby’s state. Fever is one of the most common clinical symptoms in pediatrics, children’s body temperature center is not well developed, body temperature can be affected by a variety of factors, such as gender, age, race; can fluctuate depending on the day and night and the season, low in the early morning, a little higher in the afternoon, a little higher in the summer; breastfeeding, after meals, exercise, crying, clothing and blankets are too thick, too high a temperature and mood swings and so on, can make the body temperature slightly as high as 37.5 ℃ or so. However, if only an individual temperature of 37.4 ℃, the general condition is good, and there is no self-conscious symptoms, is not pathological. Pathological fever is usually seen in infections. Half an hour after adjusting the baby’s state, the temperature is measured again, if the temperature is still 37.4 ℃ or more, it should be considered that there may be a bacterial or viral infection, then it is recommended to go to the hospital for appropriate treatment of fever.