Fever (also known as pyrexia) occurs when the body temperature is higher than normal. It is a symptom caused by a wide variety of illnesses. Fever usually occurs in response to an infection as with the flu, viruses that cause a cold, strep throat bacterial infection, or most infectious diseases, or with inflammation that occurs with tissue injury or disease (such as with some cancers). Some causes and associated symptoms of fever in adults are: viral fever, bacterial fever, fungal fever animal exposure fever.
When to Worry About a Fever
A fever has many possible causes. However, there are some reasons to be concerned or worried about a fever; do not hesitate to call or see a doctor for any high fevers; additionally, call the doctor if any of these conditions exist:
Treat as an emergency if any of the following symptoms occur with any fever.
People with serious medical illnesses, such as cancer or HIV, may not show some or any of these warning signs. Mild symptoms with fever in this patient population should be discussed with the doctor to prevent them from progressing into more serious infections or other conditions.
TREATING A FEVER
By itself, fever is usually harmless, though a high fever can be miserable. These steps may help you feel better: