Normal pediatric axillary temperature fluctuates between 36-37 degrees Celsius and anal temperature fluctuates between 36.9-37.5 degrees Celsius. The normal body temperature varies slightly from individual to individual, and the body temperature of the same person varies from season to season and from day to day. For example, the body temperature is low in the morning, slightly higher in the afternoon, and higher in the summer during the four seasons, but the difference in body temperature is usually no more than 1 degree Celsius per day. In addition, exercise, emotional excitement, and high outside temperatures may also raise the body temperature. It is best to take your body temperature every morning before you wake up and at night before you go to bed. Do not take your baby’s temperature within half an hour of drinking boiled water or eating. Generally, at home, the axillary temperature measurement is commonly used because the axilla is not exposed to the exterior, the temperature is less affected by the exterior, and the axillary area is rarely diseased, so it is not easy to have a local infection on the temperature reading, so it is a more accurate measurement method. As for the thermometer is electronic or mercury does not matter, because both methods can get more accurate values. Axillary temperature measurement method is as follows: (1) electronic thermometer to turn on the switch, mercury thermometer will be thrown mercury to 37 degrees Celsius or less. (2) Place the thermometer under the armpit and tighten the thermometer. (3) mercury thermometer takes about 5 minutes, the electronic thermometer can make a sound.