Lab ranges
PSA by age
MedlinePlus says prostate-specific antigen (PSA) is a protein produced by prostate cells. The test cannot diagnose prostate cancer. Only a biopsy can.
Ranges vary by lab. Some labs use different measurements or test different samples. The figures below are the ones the cited page published. They are not a reading of your result.
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Range
| Who | Range the source lists |
|---|---|
| Often called normal | Up to 4.0 ng/mL |
| Men in their 50s or younger | Below 2.5 ng/mL in most cases |
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What the source also says
MedlinePlus says older men often have slightly higher PSA levels than younger men. It does not publish a cutoff for each decade.
A provider looks at the result along with age, ethnicity, medicines, and other facts. Some medicines make the PSA falsely low. Do not have the test soon after a urinary tract infection or a procedure on the urinary system.
Source
- MedlinePlus: Prostate-specific antigen (PSA) blood test. Reviewed February 3, 2025.
Related
Questions
What is a normal PSA?
MedlinePlus says a level up to 4.0 ng/mL is considered normal, but this varies by age. For men in their 50s or younger, a PSA should be below 2.5 ng/mL in most cases. The test does not diagnose prostate cancer.
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Ask about the PSA by age range
Rivvi reads the cited range on this page and the note that labs differ. It does not read a person's result.
Expand my textFree to start. Opens Rivvi, the AI workspace for healthcare teams.
2M+ interactions500K+ patientsHIPAA BAA