A child’s body temperature of 37.5 degrees mostly refers to the axillary temperature, if measured correctly, 37.5 degrees is considered a fever. Fever refers to the body under the action of a thermogenic source or various causes of dysfunction of the thermoregulatory center, the body temperature rises, beyond the normal range. When measuring body temperature, the most common axillary temperature, the normal value: 36~37 ℃; low fever: 37.3~38 ℃; moderate fever: 38.1~39 ℃; high fever: 39.1~41 ℃; ultra-high fever: 41 ℃ or more. Therefore, 37.5 in children is considered low fever. For 37.5 degrees of low fever patients, you can drink more warm water, pay attention to rest, towel wet compresses and other methods to reduce the temperature, within one hour to repeat the temperature, such as failure to reduce fever, or progressive increase in temperature, more than 38.5 degrees, should immediately go to the hospital, under the guidance of the physician to use antipyretic drugs, such as ibuprofen.