About this Symptom Checker

When to seek medical advice

Your child has a fever if he or she:

  • Has a rectal, ear or temporal artery temperature of 100.4 F (38 C) or higher
  • Has an oral temperature of 100 F (37.8 C) or higher

Call your doctor if:

  • Your child is younger than 3 months and has a fever
  • Your child is older than 3 months and has a temperature higher than 102 F (38.9 C)

Also, call your doctor if your child's fever is accompanied by:

  • Severe headache
  • Seizures
  • Stiff neck
  • Confusion
  • Repeated vomiting or diarrhea
  • Irritability or significant discomfort
  • Any worrisome, different or unusual symptoms

Seek advice from your doctor for:

  • A fever that seems to last longer than is typical (approximately three days)
  • A fever that seems to be less responsive to medication than is typical


Find possible causes of fever based on specific factors. Check one or more factors on this page that apply to your symptom.

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