There are many ways to detect body temperature, such as the common method of measuring body temperature with a mercury thermometer, then there are three places to measure. First, underarm temperature measurement, put the thermometer in the armpit, and then 5 minutes to read the value. Second, oral temperature measurement, the thermometer inserted into the mouth, and then 3 minutes after the value can be read. Third, the anal temperature, the thermometer inserted into the anus, and then also 3 minutes after the temperature can be measured. Nowadays, electronic thermometers are often used to measure body temperature, ear temperature and forehead temperature. Both are using ear temperature, just use the probe into the ear, press the button, usually a few seconds to read the value. Forehead temperature is also the same, the probe into the forehead, then also a few seconds to press the button can also read the value.