Children’s normal body temperature is 36~37 ℃, 37.3 ℃ generally belongs to the fever, but can not be ruled out environmental factors and other interference, need to continue to observe. General pediatric normal body temperature in 36 ~ 37 ℃, mainly refers to the axillary temperature, when the temperature exceeds 37.2 ℃ can be identified as fever. Children’s body temperature 37.3 ℃ is on the high side, belonging to the low fever range. However, it should be noted that many factors may cause children’s body temperature is high, such as just after exercise or crying, etc., there may be a temporary increase in body temperature, need to wait for the child to calm down, exclude disturbing factors, repeat the temperature, if it is still 37.3 ℃, or even higher, indicating that the child has a fever. Once children are found to have a fever, they should seek medical advice as soon as possible and under the guidance of a doctor for targeted treatment and therapy.