High temperature

Fever is an elevation of body temperature above normal. The most common causes of fever are viral infection, often caught after exposure to cold, and bacterial infection. A person can also develop a fever due to other reasons, such as food poisoning. As body temperature rises, one may feel cold, and as it falls, sweating occurs. Fever is usually accompanied by weakness, dizziness, and other symptoms that can help determine the cause of the fever. Normal body temperature varies from 36.0°C to 37.8°C for each individual. Therefore, a body temperature of 38.0°C and higher is considered a fever.

Source | Author Doctor Nikas Samuolis, reviewed by Prof. Virginijus Šapoka | Vilnius University | Faculty of Medicine | Head of the Department of Internal Medicine, Family Medicine, and Oncology