What is the role of uroflowmetry in the workup of chronic bacterial prostatitis (CBP)?

Updated: Jan 15, 2019
  • Author: Samantha D Kraemer, MD; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

Uroflowmetry is a simple urodynamic test to help evaluate the rate of urine flow over time. It is used in patients with prostatitis to help evaluate for obstruction secondary to a urethral stricture or prostatic enlargement. Results are obtained in graphic form. Normal results show a rapid rise to a peak and then a gradual drop-off back to baseline.

A urethral stricture is indicated by a rapid rise to a low point, a plateau for the remainder of the study, and then a drop-off at the termination of the study. In prostatic enlargement, a wide variety of patterns may be present, but the peak flow is usually less than 15 mL/s, and a stop-start pattern may also be present. To help delineate abnormalities and to differentiate a stricture from prostatic enlargement, cystoscopy should be performed.


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