Body Temperature: When to Worry and COVID-19 Concerns

Temperature Inquiry

Due to the pandemic, there is heightened sensitivity to temperature readings.
Recently, my ear temperature has been fluctuating around 37.1 to 37.5 degrees Celsius, and sometimes it even reaches 37.8 degrees when the thermometer is inserted deeper into the ear.
There is an approximate discrepancy of about 0.2 degrees between Japanese and German ear thermometers.
I do not have any physical discomfort, muscle soreness, or changes in appetite or weight.

1.
Does this count as a prolonged low-grade fever?
2.
During the pandemic, at what temperature should one get tested? Is any fever considered a potential COVID-19 case, or is it necessary to have a fever along with other symptoms? I vaguely remember that during the SARS outbreak, daily temperature readings were also on the higher side, which surprised my classmates.
However, as an adult, I have also experienced a period where my temperature was around 36.7 degrees Celsius.

3.
Can women experience elevated body temperatures?

Yuan Yuan, 30~39 year old female. Ask Date: 2021/05/25

Dr. Hong Yuanbin reply Internal Medicine

Hello, indeed, each person's baseline body temperature is different, and thermometers can have discrepancies.
It is recommended to use a thermometer from a hospital or a public health facility for measurement.
If it reads around 37 degrees Celsius, this may be your baseline temperature.

1.
This should be considered your baseline temperature; "fever" is defined as a temperature exceeding your usual level.
2.
Body temperature readings can be inaccurate.
It is advisable to get tested if you have related symptoms or a potential exposure history.
3.
Women may experience an increase in body temperature due to hormonal changes, such as during menopause.

Thank you for your question.

Reply Date: 2021/05/25

More Info

Understanding body temperature and its implications, especially in the context of the COVID-19 pandemic, is crucial for maintaining health and safety. Your concerns about fluctuating body temperature and the potential implications for COVID-19 are valid, particularly given the heightened awareness surrounding fever as a symptom of infection.

1. Is this considered a long-term low-grade fever?
The term "low-grade fever" typically refers to a body temperature that is slightly elevated, generally between 37.1°C (98.8°F) and 38.3°C (100.9°F). Given that your ear temperature readings are consistently between 37.1°C and 37.5°C, this could be considered within the range of a low-grade fever, but it is essential to consider your baseline temperature. If your normal body temperature is lower than the average (which can vary from person to person), then these readings may not be indicative of a fever for you. Additionally, factors such as the time of day, activity level, and even the method of measurement can influence body temperature readings. If you are not experiencing any other symptoms such as fatigue, pain, or changes in appetite, it may not be a cause for concern. However, if this persists or if you develop additional symptoms, it would be wise to consult a healthcare professional.

2. When should you get tested for COVID-19?
During the pandemic, fever has been a common symptom associated with COVID-19, but it is not the only one. The Centers for Disease Control and Prevention (CDC) and other health organizations recommend testing for COVID-19 if you have a fever (typically defined as 100.4°F or 38°C) along with other symptoms such as cough, shortness of breath, loss of taste or smell, or fatigue. However, it is also important to consider exposure history—if you have been in close contact with someone who has tested positive for COVID-19, you should get tested regardless of symptoms. In summary, while a fever alone can be a reason to consider testing, the presence of additional symptoms or known exposure to the virus significantly increases the need for testing.

3. Do women experience higher body temperatures?
Yes, women can experience variations in body temperature due to hormonal fluctuations, particularly during the menstrual cycle. Progesterone, which rises after ovulation, can cause a slight increase in body temperature. Additionally, factors such as pregnancy and menopause can also lead to changes in body temperature regulation. It is not uncommon for women to have a slightly higher baseline temperature compared to men, and this can fluctuate throughout the month.
In conclusion, while your current temperature readings may be slightly elevated, they do not necessarily indicate a health issue, especially in the absence of other symptoms. However, if you have concerns about COVID-19 or if your symptoms change, seeking medical advice is always a prudent course of action. Regular monitoring of your health and being aware of any changes is essential, especially during these times. If you continue to experience elevated temperatures or develop new symptoms, it would be advisable to consult with a healthcare provider for further evaluation and guidance.

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