The normal body temperature of the human body is 37 ℃, but the general body surface temperature measurement is slightly lower than 37 ℃, for example, using the armpit thermometer to measure the body temperature, the measured temperature range is roughly 37 ℃ or less, such as 36.5 ℃ – 36.8 ℃ level. However, if the temperature inside the mouth is measured, it may be relatively higher than the temperature on the surface of the body, and may reach the level of 36.8℃-37.4℃. The temperature of the ear temperature due to the site is more special, the temperature can be in the level of 37 ℃ up and down. Therefore, to measure the temperature of the ear, it is important to note that the temperature of the ear may be slightly higher than the temperature of the armpit. Source: Dr. Yurai