Hormones
What is Free PSA?
refines your PSA result
- Unit
- %
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 2 days
Free PSA and the ratio of free to total PSA help distinguish benign prostate conditions from cancer when total PSA is raised.
A higher proportion of free PSA suggests a benign cause, while a lower proportion raises suspicion of cancer. The ratio is most useful when total PSA is between 4 and 10 µg/L.
What does low Free PSA mean?
A low ratio of free to total PSA raises suspicion of prostate cancer. (what_low) A high ratio of free to total PSA points to benign prostate enlargement. (what_high)
What does high Free PSA mean?
A low ratio of free to total PSA raises suspicion of prostate cancer. (what_low) A high ratio of free to total PSA points to benign prostate enlargement. (what_high)
Panels that measure Free PSA
- Prostate Test
- Health Check Man
More markers in the same area
Launching in Stockholm in 2026.
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This is general information about the marker, not an assessment of your values and not medical advice. Last updated: August 2026.