In the evaluation of lower-urinary-tract symptoms, uroflowmetry has pl
ayed a major role for decades due to its noninvasiveness and simplicit
y 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 ob
struction, relevant variables, reference values, and clinical applicab
ility. Thus, uroflow should be interpreted with proper caution.