International Prostate Symptom Score (IPSS)
Validated 7-item measure of lower urinary tract symptoms, with a separate quality-of-life question, scored 0–35.
Last reviewed: May 2026
The IPSS is a validated 7-item questionnaire measuring the severity of lower urinary tract symptoms (LUTS), based on the American Urological Association Symptom Index (Barry et al. , 1992).
Scoring & Interpretation
Each of the 7 symptom items is scored 0–5, giving a total of 0–35: 0–7 mild, 8–19 moderate, 20–35 severe. A separate quality-of-life question is scored 0–6 (Delighted to Terrible) and reported on its own, NOT added to the symptom total.
| Score Range | Severity | Clinical Action |
|---|---|---|
| 0–7 | Mild | Mild symptoms — watchful waiting is often appropriate |
| 8–19 | Moderate | Moderate symptoms — discuss management options |
| 20–35 | Severe | Severe symptoms — active management usually indicated |
The IPSS / AUA Symptom Index is the most widely validated LUTS measure, with high internal consistency and test–retest reliability and strong responsiveness to treatment (Barry et al., 1992). It is recommended in BPH management guidelines internationally.
When to Use This vs Alternatives
See It in Action
- 1Symptom total scored 0–35 the moment you finish
- 2Mild / moderate / severe bands shown plainly
- 3Per-symptom breakdown across all 7 questions
- 4Quality-of-life answer reported separately
What It Measures
The IPSS is a validated 7-item questionnaire measuring the severity of lower urinary tract symptoms (LUTS), based on the American Urological Association Symptom Index (Barry et al. , 1992). It samples incomplete emptying, frequency, intermittency, urgency, weak stream, straining and nocturia over the past month, plus a single standalone quality-of-life (bother) question.
When to Use the IPSS
Use the IPSS to quantify and track urinary symptoms in men — at first presentation of LUTS or suspected benign prostatic hyperplasia (BPH), and on review to monitor change with treatment. It is brief enough to complete in the waiting room and is the standard symptom measure in BPH guidelines worldwide. The quality-of-life item is interpreted alongside, not within, the symptom total.
Who It's For
Adult men with lower urinary tract symptoms. Self-report — the patient completes it themselves. It measures symptom burden, not a diagnosis: a high score reflects bother, and prostate assessment requires clinical evaluation.
Frequently Asked Questions
What is a normal IPSS score?
The IPSS runs from 0 to 35. A score of 0–7 is mild, 8–19 is moderate, and 20–35 is severe. "Normal" depends on the man and how much the symptoms bother him — the separate quality-of-life question helps judge that. The score measures symptom burden, not a diagnosis.
How is the IPSS scored?
Seven symptom questions are each scored 0 to 5 and added together for a total of 0–35 (mild 0–7, moderate 8–19, severe 20–35). An eighth quality-of-life question is scored 0 to 6 and reported separately — it is not added to the symptom total.
Is the IPSS the same as the AUA Symptom Index?
Yes. The IPSS is based on the American Urological Association Symptom Index (Barry et al., 1992); the seven symptom questions are identical. The IPSS adds the standalone quality-of-life question.
Use the IPSS in your practice
Available on the Free plan. No credit card required. Patients complete it on their phone or computer. Scored the moment they hit submit.