Free PSA
Free PSA represents the unbound fraction of circulating PSA, interpreted alongside total PSA for clinical clarity.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
0 – 0.9 ng/mL
0 – 0 ng/mL
0 – 0.9 ng/mL
What does a low result mean?
A lower absolute number is always interpreted as a ratio against total PSA for balanced, personalized understanding.
What does a high result mean?
A plentiful free PSA level is very reassuring, pointing toward common benign prostatic hyperplasia (BPH).
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- What is my calculated free-to-total PSA ratio?
- Does this result point toward natural, benign enlargement of the prostate?
- Is routine yearly monitoring the appropriate plan?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.