Low-Grade Fever Before Menstruation: When to Seek Help

Q: Low-Grade Fever Before Menstruation: When to Seek Help

Hello： You have measured a temperature of 37.8 degrees Celsius with an ear thermometer, which indicates a fever, and it is advisable to seek medical treatment. <br>Forehead temperature readings are generally less accurate. <br>As for which department to visit, it depends on your

A low-grade fever before menstruation may persist for more than a week?

Hello Doctor: Since around November 16, I have been feeling fatigued in the evenings and going to bed early.
On November 19, I felt hot and measured an ear temperature of 37.8 degrees Celsius, while the forehead thermometer showed 36.6 degrees Celsius, which is quite a discrepancy.
I suspect that the ear thermometer, which I purchased many years ago, may not be calibrated correctly, so I sent it back to the manufacturer for calibration on November 20.
On November 26, I received the calibrated ear thermometer, which measured 37.8 degrees Celsius, and the forehead temperature was 37.0 degrees Celsius.
However, I did not experience any abnormalities during the day at work, and I also did not have a fever when I measured my forehead temperature at the post office.
My menstrual period started on the afternoon of November 25, a few days late.
I am wondering if this low-grade fever could be related to my menstrual period.
If I want to seek medical attention, will my menstrual period have any impact? Which department should I visit for a consultation? Thank you, Doctor.

S Xiong, 20~29 year old female. Ask Date: 2020/11/26

Dr. Wu Zongying reply Family Medicine

Hello: You have measured a temperature of 37.8 degrees Celsius with an ear thermometer, which indicates a fever, and it is advisable to seek medical treatment.
Forehead temperature readings are generally less accurate.
As for which department to visit, it depends on your symptoms.
Women are prone to urinary tract infections; if you have symptoms such as frequent urination or urgency, you should see a urologist.
If not, you can visit an internist.
Generally, a normal menstrual period should not cause a fever of 37.8 degrees Celsius.

Reply Date: 2020/11/26

More Info

Understanding low-grade fever before menstruation can be a complex issue, as various factors may contribute to this phenomenon. Based on your description, it seems you have been experiencing fluctuations in body temperature, particularly a low-grade fever around the time of your menstrual cycle. This situation raises several important considerations regarding when to seek medical help and what might be causing these symptoms.

Firstly, it is essential to understand that hormonal changes during the menstrual cycle can lead to various physiological responses in the body. In the luteal phase, which occurs after ovulation and before menstruation, the body experiences an increase in progesterone levels. This hormone can cause a slight elevation in body temperature, which may explain the low-grade fever you are experiencing. A body temperature of 37.8°C (100°F) is generally considered a low-grade fever, and it can be influenced by hormonal fluctuations.

The discrepancies in temperature readings from different devices (ear thermometer vs. forehead thermometer) can also be a source of confusion. Ear thermometers can be affected by earwax buildup or improper placement, while forehead thermometers may not always provide accurate readings if the skin is not at the right temperature. It is advisable to use a reliable method for measuring body temperature, such as an oral or rectal thermometer, especially if you are concerned about fever.

Regarding your question about whether to seek medical help, it is essential to consider the duration and severity of your symptoms. If the low-grade fever persists beyond a few days, is accompanied by other concerning symptoms (such as severe pain, unusual discharge, or significant fatigue), or if you have any underlying health conditions, it would be prudent to consult a healthcare professional.
In terms of which specialty to visit, a gynecologist would be the most appropriate choice, as they can evaluate any menstrual-related issues and determine if your symptoms are related to hormonal changes or other gynecological conditions. If your symptoms suggest a potential infection or other systemic issues, your gynecologist may refer you to an internist or a specialist in infectious diseases for further evaluation.

Additionally, it is important to monitor your overall health and any changes in your symptoms. Keeping a record of your temperature, menstrual cycle, and any other symptoms can provide valuable information for your healthcare provider. If you notice any patterns or significant changes, be sure to discuss them during your appointment.

In summary, while low-grade fever before menstruation can be a normal physiological response due to hormonal changes, it is essential to remain vigilant about your health. If your symptoms persist or worsen, seeking medical advice is crucial. A gynecologist would be the best specialist to consult in this case, as they can provide insight into menstrual health and any related concerns. Remember to keep track of your symptoms and communicate openly with your healthcare provider to ensure you receive the appropriate care.

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