Ask An Explainer; About the Exhibit; How Things Fly Smithsonian National Air and Space Museum
The normal temperature inside your childâs body is usually around 37 degrees Celsius. Your child has a mild fever if their temperature is higher than 38 degrees Celsius. A high fever usually means more than 39 degrees Celsius.
Most health care providers consider a fever to be 100.4 degrees Fahrenheit (38 degrees Celsius) or higher. Although high fevers may bring on seizures (convulsions) in children or confusion, generally, it is not how high the temperature is, but how rapidly the temperature rises that causes a convulsion.