In order to accurately measure the temperature, we should pay attention to the following aspects: 1. Fixed time: measured every morning before waking up at 6:00 a.m. Do not exceed 1 hour before and after the daily temperature measurement time, between 5:30 and 6:30. At this time the body temperature is the basal body temperature; 13 to 14 hours to measure the temperature for the afternoon body temperature; 19 to 20 hours to measure the temperature for the night body temperature. 2, fixed parts: our people’s habit is to measure the body temperature under the armpit. Because the temperature of various parts of the body is not the same, such as the oral cavity, axilla, anus parts of the temperature is not the same, such as the axillary measurement, each time the axillary measurement. Caution: 1. Rest for half an hour before taking the temperature, including physical and mental rest, because the body temperature is not the same after just working and resting. 2, do not drink alcohol before measuring the temperature, do not drink too cold drinks or hot and cold compresses, dry sweat to avoid errors. 3, the thermometer used to be fixed, do not use this one today, tomorrow for another, because each one is a little different from each other. 4.Measurement time is generally not less than 5 min. 5.If you suspect a low fever, you may want to use the above temperature measurement method to observe 10 to 15 days, you can observe whether there is a low fever.