How Long Do You Leave a Thermometer in Your Mouth?

By Staff WriterLast Updated Mar 28, 2020 12:59:58 PM ET
long-leave-thermometer-mouth
Image Source/Image Source/Getty Images

To obtain an accurate temperature reading, a glass thermometer must remain in the mouth for three minutes, while a digital thermometer remains in the mouth until it beeps or the temperature reading appears in the window, according to Drugs.com. The tip of the thermometer must be placed under the tongue.

Advertisement