What is the difference between armpit and oral thermometers?

　　A tongue thermometer generally refers to an oral thermometer, while an armpit thermometer refers to an axillary thermometer. The main differences between axillary and oral thermometers lie in the measurement site, measuring instruments, and standard values. Specific details are as follows:

　　1. Measurement Site

　　An axillary thermometer involves placing the metal tip under the armpit and waiting for 5 minutes before removal. An oral thermometer measures temperature inside the mouth; the mercury tip should be placed under the tongue in the heat-sensitive area (sublingual fossa) and left for 5 minutes before reading.

　　2. Measuring Instruments

　　Oral thermometers are typically made of mercury, whereas axillary temperature measurements can be performed using either mercury thermometers or electronic thermometers.

　　3. Standard Values

　　Because different factors affect temperature readings in the armpit and mouth, the standard values differ. Generally, normal axillary temperature ranges from 36°C to 37°C; any reading above 37°C may indicate fever. In contrast, normal oral temperature ranges from 36.3°C to 37.2°C; fever is considered when the temperature exceeds 37.2°C.

　　In summary, there are several notable differences between axillary and oral thermometers. If fever occurs, it is recommended to visit a hospital promptly and have body temperature measured by a qualified medical professional, who can then recommend appropriate management based on the measured temperature.