At What Body Temperature Do You Have a Fever?


Quick Answer

An oral temperature of more than 100.4 degrees Fahrenheit is considered to be a fever, according to WebMD. A normal body temperature is approximately 98.6 degrees Fahrenheit, which may vary by 1 degree from individual to individual and can change depending on various factors, such as physical activity.

Continue Reading
Related Videos

Full Answer

WebMD explains that fevers can be caused by infections; certain medications that specifically raise body temperature; other medications that impair the body's ability to regulate body temperature; severe trauma or injury; and other conditions, including arthritis, hyperthyroidism, and certain forms of cancer. An abnormally high body temperature called heatstroke can occur as a result of exposure to heat or excessive physical exertion.

Learn more about Medical Ranges & Levels

Related Questions