The normal range of axillary temperature is between 36 and 37.1 degrees Celsius. Measuring body surface temperature is mostly based on measuring the axillary temperature, and axillary temperature measurement is easier to measure relative to sublingual temperature, and anal temperature. Armpit temperature measurement method is to first mercury thermometer shake a few times, so that the mercury line down to 35 ℃ readings below, and then there will be mercury sensing end into the armpit against the skin clamping, 7 to 10 minutes after the removal of the thermometer to see the readings. Normal human armpit temperature is not constant, with the human day activities, eating, exercise will have 0.5 to 1 ℃ fluctuations between, but most of the 36 to 37.1 ℃ between. An axillary temperature of more than 37.1 ℃ is considered fever; an axillary temperature within the range of 37.1 to 37.9 ℃ is considered low fever; an axillary temperature between 38 and 38.9 ℃ is considered moderate fever; and an axillary temperature of more than 39 degrees Celsius is considered high fever. If the temperature is abnormal, difficult to relieve, or accompanied by other discomforts, you should consult a doctor promptly.