Fever is the body’s own way of expelling harmful bacteria and viruses, which can otherwise cause an infection in the body. Fever is one of body’s defences against infection wherein the body temperature rises above normal. The average normal body temperature is about 98.64°F or 37°C, so . In fever the body temperature risess above 100.4°F or 3837.7°C. are generally considered to be febrile.
The body increases its temperature to create an environment that prohibits growth of such bacteria or viruses.
It’s important to understand that fever by itself is not a disease but a symptom of another disease. It can be caused due to various factos such as a virus, bacteria, cancer, kidney or urinary infections, heat exhaustion, etc. Since most bacteria and viruses thrive at 98.6°F, the body naturally increases its temperature on their detection, thus making it difficult for them to survive. Symptoms accompanying fever include headacheHeadaches, body ache, shivering, loss of appetite, dehydration, and weakness are some of the symptoms associated with fever, etc.