What Causes Fever at Night Only?
July 24, 2023 | by Yashaswi Pathakamuri | Posted in FAQ's
Experiencing a fever that occurs primarily or exclusively at night is not uncommon, and there can be several potential causes for this phenomenon. Some of the common reasons include:
- Circadian Rhythm: Our body’s temperature naturally fluctuates throughout the day due to our circadian rhythm. It tends to be lower in the early morning and higher in the late afternoon and evening. This normal variation may lead to the perception of a fever at night when the temperature is at its peak.
- Infections: Certain infections, such as tuberculosis, urinary tract infections, and certain types of respiratory infections, can cause an increase in body temperature that may be more prominent during the night. Infections often trigger the body’s immune response, leading to a rise in temperature as it fights off the pathogens.
- Inflammatory Conditions: Inflammatory conditions like rheumatoid arthritis or some autoimmune diseases can cause fevers that are more pronounced at night. The inflammatory response tends to be more active during the night in some individuals, leading to an elevation in body temperature.
- Medication Timing: The timing of certain medications can also play a role. For instance, some drugs may wear off or be less effective during the night, causing a feverish feeling as the body’s natural defenses attempt to combat the underlying condition.
- Night Sweats: Night sweats can lead to a sensation of fever at night. They can be caused by various factors, including infections, hormonal imbalances, certain medications, and even some neurological conditions.
- Environmental Factors: The temperature and humidity in the sleeping environment may contribute to night-time fevers. Sleeping in a warm or stuffy room can make you feel warmer and exacerbate the sensation of fever.
- Stress and Anxiety: Heightened stress levels or anxiety, particularly during the night, can sometimes lead to an increase in body temperature and the sensation of a fever.
If you are experiencing night-time fevers or any unexplained symptoms, it’s essential to consult a healthcare professional. They can conduct a thorough evaluation, perform necessary tests, and determine the underlying cause. Self-diagnosis and treatment are not recommended as it may delay proper care for potentially serious conditions.