A child’s body temperature of 37.5℃ is considered a fever. The normal body temperature range for children is: axillary temperature is 36.0℃~37.2℃, anal temperature is 36.5~37.5℃, and oral temperature is generally 0.2℃~0.5℃ higher than axillary temperature. The axillary temperature is commonly used in clinical practice, and exceeding the upper limit of the normal body temperature range is considered fever. When the axillary temperature 37.3 ℃ ~ 38.0 ℃ for low fever, 38.1 ℃ ~ 39 ℃ for moderate fever, 39.1 ℃ ~ 41.0 ℃ for high fever, 41 ℃ or more is ultra-high fever. Therefore, a child with a temperature of 37.5℃ is considered to have a low fever. General fever first ensure rest and drink water, you can use physical cooling such as ice cap, ice packs, etc., but the use of time should not be too long; if the temperature exceeds 38.5 ℃, it is recommended that the use of antipyretic medication under the guidance of a doctor, in the fever at the same time should also actively look for the cause of fever, such as viral infections, mycoplasma infections, hyperthyroidism and so on, for the cause of the disease to be given treatment. If the child’s temperature 37.5 ℃ for a long time or have a tendency to warm up, it is recommended to go to the hospital under the guidance of a doctor to give treatment, so as to avoid delaying the condition.