What causes a constant low-grade fever? From COVID to pneumonia, this article explores 8 common causes behind your persistent low-grade fever.

Exploring the Causes of Persistent Low Grade Fever

A lasting low-grade fever can be a sign that something is not right with your body. When you have an actual fever over 100.4 degrees Fahrenheit, it usually indicates an infection is present. However, a low-grade fever, which is a temperature above the normal 98.6 degrees Fahrenheit but still lower than 100.4 degrees, can have various underlying causes.

Is a Low-Grade Fever Serious?

Doctors generally do not consider a low-grade fever to be a serious concern, as it can be a sign that the immune system is working to fight off an infection. However, a persistent low-grade fever becomes more concerning in individuals with compromised immune systems, the elderly, and infants under three months of age. In these cases, it is recommended to have the fever evaluated by a medical professional.

Potential Causes of Persistent Low-Grade Fever

A low-grade fever is often related to an immune system dysfunction or a chronic health condition that triggers the immune system to fight, even when there is no active infection. Some of the common conditions that can cause a persistent low-grade fever include:

1. Corticosteroid Use

Corticosteroids, such as Prednisone or Solu-Medrol, can depress the adrenal glands and reduce certain hormones that help the body fight illness. While they work to reduce inflammation, they can also weaken the immune system, making it more difficult to fight off infections.

2. Chemotherapy

Cancer treatments like chemotherapy can weaken the immune system and lower the body’s resistance to infection, leading to a persistent low-grade fever.

3. Thyroid Disease

Conditions like Graves’ disease or hyperthyroidism, which affect the thyroid’s regulation of body temperature and metabolism, can result in a higher than normal body temperature and a persistent low-grade fever.

4. Immunosuppressive Drugs

Individuals who have undergone organ transplants or require medications to suppress their immune system may experience a persistent low-grade fever, as the body’s defenses can be easily triggered by even the smallest things.

5. Autoimmune and Inflammatory Conditions

Disorders that affect the immune system, such as lupus, rheumatoid arthritis, and juvenile arthritis, can cause the body to raise its defenses and fight off its own tissue, leading to a persistent low-grade fever.

Potential Treatment Options for Persistent Low-Grade Fever

While there are some home remedies that can be used to manage a low-grade fever, it is always best to consult with a healthcare professional, especially if you have an underlying condition or are taking immunosuppressant medications.

Herbal Remedies

Feverfew, an herbal remedy, may be helpful for reducing inflammation, pain, and fever, as well as addressing other issues like migraines and stomach upsets. However, it is important to check with your doctor before using any herbal therapies, particularly if you have an autoimmune disorder or are taking immunosuppressant medications.

Over-the-Counter Medications

Over-the-counter pain relievers and fever reducers, such as acetaminophen or ibuprofen, can be used to help manage a low-grade fever. However, it is important to follow the dosage instructions and consult with a healthcare professional if the fever persists or worsens.

Medical Evaluation

If a low-grade fever lasts for more than a few weeks or is accompanied by other concerning symptoms, it is important to seek medical evaluation. A healthcare professional can help identify the underlying cause and provide appropriate treatment.

Conclusion

Persistent low-grade fever can have a variety of underlying causes, ranging from immune system dysfunction to chronic health conditions. While a low-grade fever may not always be a serious concern, it is important to monitor it and seek medical attention if it persists or is accompanied by other concerning symptoms. By understanding the potential causes and seeking appropriate treatment, individuals can address the underlying issue and regain their health.