According to field clinics Department of Medical Science Journalists Club quoted Health, although fever makes people feel sick and uncomfortable, but it represents the development of a disease. Fever can be caused by a wide range of topics. In some cases, this is not serious and will go away on its own over time. However, fever in some cases indicates a serious problem and the person should see a doctor immediately.
In fact, fever refers to an increase in body temperature above normal. Fever is usually a sign of the body trying to fight infection and pathogens. What happens in the body at this time is very complex, but in general it means that the immune system is fighting the pathogens and the body’s priority is the health of vital organs.
See the link below for more information