Uroflowmetry measures the flow urine. It tracks how fast urine flows, how much flows out, and how long it takes. It’s a diagnostic test to assess how well the urinary tract functions. Your doctor may suggest uroflowmetry if you have trouble urinating, or have a slow stream.By measuring the average and top rates of urine flow, this test can show an obstruction in your urinary tract such as an enlarged prostate. When combined with the cystometrogram (CMG) it can help find problems like a weak bladder.
Urology Care Foundation

Voided Volume

Total volume of urine expelled via the urethra during a single void.
ICS Glossary

Max Flow Rate

Urine flow rate is the volume of urine expelled via the urethra per unit time.
Max flow rate is maximum measured value of the urine flow rate.
ICS Glossary

Voiding Diary

A bladder diary is a tool used by you and your health care professional to better understand your Incontinence symptoms. It helps you track and know how much and when you drink liquids, how much and when you urinate, when you have that “gotta go” feeling, and how much and when you leak urine.
When is a Bladder Diary used? You can use a Bladder Diary before or after visiting with your health care provider. Having a Bladder Diary during your first visit can be helpful because it describes your daily habits, your urinary symptoms and demonstrates how they are affecting your life. Your doctor will use this information to help treat you.
ICS Committees

IPSS Score

The International Prostate Symptom Score (I-PSS) is based on the answers to seven questions concerning urinary symptoms. Each question is assigned points from 0-5 indicating the severity of the particular symptom.  The total score can therefore vary from 0-35 (asymptomatic to very symptomatic). Although there are presently no standard recommendations into grading patients with mild, moderate or severe symptoms, patients can be tentatively classified as follows: 0-7 = mildly symptomatic, 8-19 = moderately symptomatic, 20-35 = severely symptomatic. The international Consensus Committee (ICC) recommends the use of only a single question to assess a patient's quality of life. The answers to this question range from ‘delighted' to ‘terrible' or 0-6.  Although this single question may or may not capture the global impact of BPH symptoms on quality of life, it may serve as a valuable starting point for a doctor-patient conversation.
National Health Service


The OABSS(Overactive Bladder Symptom Score) is based on a symptom assessment questionnaire designed to quantify OAB symptoms as a single score, and contains questions about the following 4 symptoms of OAB: daytime frequency, nighttime frequency, urgency, and urge incontinence. In this tool, the patients are asked to rate their symptom severity on a Likert scale with the maximum (worst) scores of 2, 3, 5, and 5. The total score ranges from 0 to 15, and a more severe OAB is indicated by a higher score. The scoring system is designed to place more weight on urgency and urgency incontinence than on frequency. The questionnaire has been shown to satisfy psychometric criteria for reliability.
International Neurourology Journal