How to measure body temperature without a thermometer
Jan 07, 2025
Source: Cainiu Health
Dr. Ren Yi
Introduction
Under normal circumstances, in the absence of a thermometer, measuring body temperature may not be sufficiently accurate. However, one can roughly assess temperature by touching and comparing warmth, observing breath temperature, noting physical symptoms, self-measuring pulse rate, and observing the color of the oral cavity. Please note, however, that none of these methods can provide precise temperature readings and should only be used as a basis for preliminary assessment.
Generally, in the absence of a thermometer, measuring body temperature may not be accurate, but it is possible to make a rough assessment by comparing temperatures through touch, observing breath temperature, noting physical symptoms, self-measuring pulse, and observing the color of the oral cavity. The specific methods are as follows:
1. Touch and Compare Temperature
Gently touch your forehead with the back of your hand and compare it with your usual normal temperature. If it feels significantly warmer, it may indicate an elevated body temperature. You can also compare by touching someone else's forehead, or ask another person to use the back of their hand to touch both your forehead and that of the person suspected of having a fever for temperature comparison.
2. Observe Breath Temperature
In a calm state, place your palm near your mouth and nose to feel the temperature of your exhaled breath. If the exhaled air feels significantly warmer than usual, it may indicate an elevated body temperature.
3. Observe Physical Symptoms
An elevated body temperature may be accompanied by chills and coldness, followed by symptoms such as muscle aches, fatigue, and loss of appetite. During the rising phase of body temperature, signs such as facial flushing, coarse and rapid breathing may also appear.
4. Self-Measure Pulse
In a calm state, use your index, middle, and ring fingers together to lightly press on the radial artery of the other hand. Measure the pulse for 30 seconds and multiply the count by 2 to get the pulse rate per minute. Compare this with your usual pulse rate when calm.
5. Observe Oral Cavity Color
Ask a friend or family member to observe the color of your oral cavity. If it appears red or dark red, it may indicate an elevated body temperature. However, please note that this method is influenced by various factors such as lighting and viewing angle, and its accuracy is relatively low.
It should be noted that none of the above methods can provide precise temperature readings and can only serve as a preliminary basis for judgment. If you suspect you have a fever or other discomfort symptoms, it is recommended to seek medical attention promptly and undergo examination and treatment by a qualified physician. Prior to seeking medical care, you can try drinking more water, resting more, and continuing to monitor your physical condition.
