Adult body temperature of 37.1 ℃ normal, measuring body surface temperature has 3 locations, from top to bottom, are the oral cavity, armpits, rectum. Usually, from the perspective of cleanliness, hygiene and safety, the armpits are usually chosen as the main temperature-taking location. Before taking the temperature should be early in the morning, awake, fasting, resting state, before taking the temperature with a towel fully under the armpit sweat wipe clean, so as to avoid due to the evaporation of sweat, affecting the thermometer readings. Also, the thermometer should be in contact with the armpit for at least 10 minutes, so that the heat can be fully transferred between the body and the thermometer, and the readings are relatively accurate. The normal armpit temperature is 36.0-37.3°C, so a temperature of 37.1°C is normal.