Daytime urinary frequency syndrome in children

Objective: To analyze clinical symptoms, laboratory, uroflow and ultrasound findings in children with daytime urinary frequency syndrome. Materials and methods: Twenty-four children were analyzed, who were referred for examination due to the sudden onset of frequent voiding. They all had previously normal urinary history. Their age range was 2.5-13 years (mean 6.4 yrs). The diagnostic work-up consisted of history, clinical examination, registration of fluid intake, time and volume of each voiding, urinalysis, urinary culture, kidney and bladder ultrasonography (US) with measurement of residual urine, and uroflow. Results: In all children symptoms spontaneously resolved after 2 weeks to 24 months. During the follow-up period no children developed incontinence or urinary tract infection. Kidney US was normal in all children, bladder wall thickness was 2-3 mm, and residual urine was 0-12 ml. Uroflow was normal in all children with voided volume >50% for age. Conclusions: Daytime urinary frequency syndrome in children is a benign condition, that spontaneously resolves after several weeks or months, and does not require treatment. The condition should be recognized in clinical pratice in order to avoid invasive and expensive diagnostic procedures, that include catheterization and ionizing radiation exposure of children.