What is Uroflowmetry?

Uroflowmetry is an objective test conducted for the evaluation of lower urinary tract functioning. It is a simple and noninvasive test used to measure the amount of urine produced in a given amount of time, and the flow rate of urine created during urination.


Patients undergoing a uroflowmetry procedure should take a few simple steps to help ensure the best possible accuracy of the results. Before beginning the test, the patient should empty their bladder and drink a few glasses of fluids. This helps ensure that the bladder is completely full at the start of the test. Patients should wear loose clothing to the test, and a lubricant such as Vaseline may be used to assist with placement of the equipment.


During a uroflowmetry test, the patient will sit on a toilet or specialized uroflowmeter, and begin to urinate into a special collecting cup. The patient will void as normally as possible, and the results of urine flow will be monitored via a specialized computer for the duration of the urination. This process usually takes a few minutes, and the patient must empty their bladder completely for the test results to be accurate.


There are two types of uroflowmetry tests available: direct and indirect. In a direct test, the patient must urinate directly into a cup while the results are monitored real-time. In an indirect test, a special sensor is placed inside the patient's urethra, and results are monitored indirectly.


Uroflowmetry is a safe and noninvasive procedure with no major risks. The test is quick and painless, and may cause only minor discomfort.

Why is Uroflowmetry done?

Uroflowmetry is often recommended when a patient has difficulty or pain associated with urinating, or has issues such as urinary incontinence or bladder control problems. The test can reveal abnormalities in urine volume, flow rate, and production times which can diagnose a variety of issues.

When should Uroflowmetry be done?

Uroflowmetry is recommended when a patient is showing consistent or recurring symptoms of urinary dysfunction or when abnormalities are suspected. It can also help diagnose urinary conditions such as infection, obstruction, or weakened bladder.