A low-grade fever is usually defined as a body temperature that is slightly elevated above the normal range (98.6°F or 37°C). There are many possible reasons why you might have a low-grade fever but feel fine. Here are some common causes:
- Viral or bacterial infections: Many infections, such as the common cold or flu, can cause a low-grade fever. Often, people with these infections may not feel very sick, but their body temperature is slightly elevated as a sign that their immune system is fighting off the infection.
- Medications: Certain medications, such as antibiotics, can cause a low-grade fever as a side effect. This is usually not a cause for concern, but you should speak to your doctor if you are experiencing any other symptoms or if your fever persists.
- Hormonal changes: Women may experience a low-grade fever during their menstrual cycle or during menopause due to hormonal fluctuations.
- Dehydration: Mild dehydration can cause a low-grade fever, as the body tries to regulate its temperature.
- Other medical conditions: Certain medical conditions, such as autoimmune disorders or cancer, can cause a low-grade fever as a symptom.
In many cases, a low-grade fever is not a cause for concern, and the body will typically resolve the issue on its own. However, if your fever persists or is accompanied by other symptoms such as chills, headache, or body aches, you should speak to a doctor to rule out any underlying medical conditions.