If a child has a fever, when is it considered serious?

A fever is a common symptom in children and can indicate various underlying conditions. Generally, a fever is measured as a body temperature above the normal range, which is typically around 98.6°F.

When a child's fever reaches 104°F or higher, it is considered serious because it may indicate a more severe infection or illness that requires immediate medical attention. High fevers can lead to complications, such as febrile seizures, particularly in younger children. It is essential for caregivers to monitor the child closely and seek medical advice if the fever persists or is accompanied by other concerning symptoms.

While other temperature thresholds mentioned may warrant attention, especially if accompanied by other symptoms, they do not necessarily indicate an immediate need for medical intervention. A fever over 100°F or even 102°F may require monitoring and supportive care but is not in itself a cause for alarm unless accompanied by severe symptoms. Similarly, a fever lasting three days may be significant, but it is the elevation to 104°F or higher that typically signals a more urgent need for evaluation and care.