AAP Updates Pediatric UTI Guideline, Favoring Shorter Antibiotic Courses and Oral Therapy

The American Academy of Pediatrics (AAP) has issued an updated clinical practice guideline on the diagnosis and treatment of urinary tract infection (UTI) in children 8 days to 5 years of age, published in Pediatrics. The guideline updates the 2011 AAP guideline and expands the age range from the previous 2 months to 2 years.

The guideline is intended for children with low medical complexity across care settings. The panel used the Grading of Recommendations Assessment, Development, and Evaluation approach and issued 8 Key Action Statements (2 strong and 6 conditional recommendations, with low to very low certainty of evidence) and 4 Good Practice Statements. The panel also removed race-based considerations from UTI diagnosis and treatment.

The panel suggests a shorter antibiotic course (≤7 days) rather than a longer course (conditional recommendation, low certainty). For children 2 years and older without known anatomic abnormalities, it suggests 3 to 5 days for nonfebrile UTI suggestive of cystitis and 5 to 7 days for suspected pyelonephritis; it suggests 5 to 7 days for children 2 to 24 months of age. For children older than 28 days and younger than 5 years, the panel recommends oral antibiotics over parenteral or sequential therapy requiring hospitalization (strong recommendation, very low certainty), citing evidence of equivalent renal scarring and short-term recurrence outcomes and harms of parenteral therapy.

For imaging, the panel recommends renal and bladder ultrasonography (RBUS) after a first febrile UTI to detect structural abnormalities, and suggests against routine voiding cystourethrography after a first febrile UTI when RBUS is normal. It also suggests against routine continuous antibiotic prophylaxis in children with low-risk vesicoureteral reflux.

The guideline authors noted that not all urology and nephrology panel members supported every aspect of the recommendation against routine antibiotic prophylaxis for low-risk vesicoureteral reflux, though they agreed it offers a reasonable starting point for initial management pending subspecialist consultation.

Source: Alverson BK, Hains DS, Downs SM, et al. Clinical practice guideline for the diagnosis and treatment of urinary tract infection in children from 8 days to 5 years of age. Pediatrics. Published online September 28, 2026. doi:10.1542/peds.2026-078565