If the child’s anal temperature is between 36.5-37.5 ℃, it means that the body temperature is in the normal range, the normal axillary temperature of children is between 36-37 ℃, and the temperature of the anal temperature is generally higher than the axillary temperature of 0.5 ℃. At this time children’s anal temperature between 36.5-37.5 ℃, mental state is also relatively good, no cough, diarrhea and other conditions, indicating that the child belongs to the normal anal temperature, no need for special treatment. If the child’s anal temperature exceeds 37.8 ℃, it belongs to the case of fever, need to find out the specific cause of the disease, such as whether it is caused by bacterial infection, or Mycoplasma pneumoniae infection. In summary, children’s anal temperature between 36.5-37.5 ℃ is a normal phenomenon, otherwise it is abnormal, to find out the specific causes.