Which symptoms are associated with urinary tract infection (UTI) in children aged 2 months to 2 years?

Updated: Mar 19, 2019
  • Author: Donna J Fisher, MD; Chief Editor: Russell W Steele, MD  more...
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Infants with UTI may display the following symptoms:

  • Poor feeding

  • Fever

  • Vomiting

  • Strong-smelling urine

  • Abdominal pain

  • Irritability

As with young infants, the majority of infants and young children in this age range who have pyelonephritis also lack symptoms localized to the urinary tract. However, some children aged 1-2 years may present with voiding symptoms suggestive of cystitis, with crying on urination or only a foul odor to the urine in the absence of clinically significant fever (temperature < 38°C).

Infants and young children of this age may also have only a history of unexplained fever (ie, rectal or tympanic membrane temperature of >38°C). Some infants with pyelonephritis in this age range have fever and few other symptoms, whereas others are acutely ill and have a history of irritability, decreased oral intake, abdominal pain, vomiting, and loose bowel movements. Patients in this age group are at higher risk for renal injury than are older children, possibly because the lack of localizing signs of infection delays the start of antibiotic therapy.

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