If you are an adult with a fever over 104 F (40 C), call your healthcare provider. If it is over 105 F (40.5 C), go to your nearest emergency room. For a newborn, a fever of 100.4 F (38 C) requires ...

Whether stemming from a wound, a toothache or an infection like the flu, nearly everyone has experienced the discomfort of having a fever. While fevers can be inconvenient and are sometimes a sign of ...

A fever is typically harmless and can occur when the body fights an infection, such as the flu. Persistent high fevers or additional symptoms, such as abdominal pain or difficulty breathing, may ...