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Fever 104 degrees F (40 degrees C) or higher

The degree of a fever does not always relate to the seriousness of the illness. It is more important to evaluate other symptoms, rather than focus on the number on the thermometer.

High fevers that do not get better with home treatment may mean that a serious infection is present and may lead to other problems, such as dehydration or sepsis. Abscesses, such as an abscessed tooth or from a puncture wound, can cause serious systemic infections.

Remember, fever is only a symptom. Often the importance of a fever can be determined only when other symptoms are evaluated.

Author Jan Nissl, RN, BS
Editor Susan Van Houten, RN, BSN, MBA
Editor Sydney Youngerman-Cole, RN, BSN, RNC
Associate Editor Tracy Landauer
Primary Medical Reviewer William M. Green, MD
- Emergency Medicine
Specialist Medical Reviewer Andrew Swan, MD, CCFP, FCFP
- Family Medicine
Last Updated April 24, 2007

WebMD Medical Reference from Healthwise

Last Updated: April 24, 2007
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.