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Note: All information on Nemours KidsHealth® is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2025. The Nemours Foundation. Nemours Children's Health®, Nemours KidsHealth®, KidsHealth®, and Well Beyond Medicine® are registered trademarks of The Nemours Foundation. All rights reserved. Images sourced by The Nemours Foundation and Getty Images.