A low-grade fever is often classified as an oral temperature that is above 98.6° F (37° C) but lower than 100.4° F (38° C) for a period of 24 hours. 1. A fever of 103° or higher is more concerning in adults. Fevers, though uncomfortable, play a key role in helping your body fight off many infections. 2.
In this regard, what causes high fever?
In response to an infection, illness, or some other cause, the hypothalamus may reset the body to a higher temperature. Although the most common causes of fever are common infections such as colds and gastroenteritis, other causes include: Infections of the ear, lung, skin, throat, bladder, or kidney.
What infections cause fever?
Causes. Fever can be caused by a number of factors: an infection, such as strep throat, flu, chickenpox, or pneumonia. rheumatoid arthritis.
What causes fever in adults?
Viral Fever. Illnesses caused by viruses are among the most frequent causes of fever in adults. Common symptoms can include a runny nose, sore throat, cough, hoarseness, and muscle aches. Viruses also may cause diarrhea, vomiting, or an upset stomach.
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