What are the signs and symptoms of acute pyelonephritis (kidney infection) in children?

Updated: Jul 01, 2021
  • Author: Tibor Fulop, MD, PhD, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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The classic manifestations of acute pyelonephritis observed in adults are often absent in children, particularly neonates and infants. In children aged 2 years or younger, the most common signs and symptoms of urinary tract infection (UTI) are as follows:

  • Failure to thrive
  • Feeding difficulty
  • Fever
  • Vomiting

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