Uroflowmetry in elderly men.

In the evaluation of lower-urinary-tract symptoms, uroflowmetry has played a major role for decades due to its noninvasiveness and simplicity to perform. However, several pitfalls have to be taken into account as mentioned in this review. They include artifacts, circadian changes, observer variation, minimal volume, association with infravesical obstruction, relevant variables, reference values, and clinical applicability. Thus, uroflow should be interpreted with proper caution.