What causes low-grade fever?


A low-grade fever typically refers to a body temperature that is slightly elevated, usually between 99°F (37.2°C) and 100.9°F (38.3°C). There are many possible causes of low-grade fever, including:

  1. Infections: Common cold, flu, urinary tract infection, pneumonia, and sinusitis are some of the infections that can cause a low-grade fever.
  2. Autoimmune diseases: Certain autoimmune disorders such as lupus, rheumatoid arthritis, and inflammatory bowel disease can cause chronic low-grade fever.
  3. Medications: Certain medications, such as antibiotics, can cause low-grade fever as a side effect.
  4. Allergic reactions: Allergic reactions to foods, drugs, or other allergens can cause low-grade fever.
  5. Hormonal changes: Hormonal changes in women during menstruation, pregnancy, and menopause can cause low-grade fever.
  6. Cancer: Some types of cancer, such as leukemia and lymphoma, can cause low-grade fever.
  7. Stress: Emotional or physical stress can cause low-grade fever.
  8. Dehydration: Dehydration can cause a low-grade fever in some cases.

If you are experiencing a low-grade fever, it’s important to consult with a healthcare provider to determine the underlying cause and receive appropriate treatment.

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