At What Temperature Should a Child's Fever Be Considered Dangerous?

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A fever over 108 degrees Fahrenheit is very dangerous and can cause brain damage, according to Seattle Children's Hospital. A fever over 106 degrees is very high and must be brought down, while a normal fever range in children is 102 to 104 degrees.

If a child has a fever of 104 degrees Fahrenheit that does not go away within two hours of treatment, the child's parent or guardian should call a doctor immediately, according to Seattle Children's Hospital. Any fever in babies under 12 weeks of age is cause to see a doctor. While a fever of 104 degrees is high, it is not dangerous as long as it can be brought down and it is not accompanied by other serious symptoms such as signs of dehydration, confusion or difficulty breathing.