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Symptoms of serious illness in children

Immediate medical care may be needed when fever, vomiting, or a seizure occurs along with signs of a serious illness.

Symptoms of serious illness include:

  • Severe neck stiffness or pain and fussiness.
  • Extreme sleepiness, difficulty waking up, or a lack of alertness.
  • A bulging soft spot (fontanel) on a baby's head.
  • Rapid, difficult breathing.
  • Drooling and not wanting to swallow.
  • Severe pain.
  • Signs of severe dehydration.
  • Blue or purple skin or mucous membranes (cyanosis).
  • New skin rash or spontaneous bruising.
  • New swelling, pain, redness, or warmth in one or more joints.
  • Fever of 105F or higher 30 to 60 minutes after giving medication for fever.
  • Any signs of a urinary tract infection, such as pain or burning with urination or urinating frequently and in small amounts.
Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.