PSA

Tumor MarkersBlood

PSA is a protein made by the prostate gland. Both normal and cancerous prostate tissue make it.

Why it matters: A high PSA level does not mean prostate cancer is present, though it is associated with a higher risk.

Source · Cleveland Clinic — what it is, why it matters, what moves it, related conditions

Reference Range
< 4.0ug/L
4NormalHigh
What Moves It

May increase with:

Benign prostatic hyperplasia
Prostate inflammation (prostatitis)
Urinary tract infections
A recent prostate biopsy
Recent urinary catheter use
Recent surgery for benign prostatic hyperplasia
Associated Conditions
Prostate cancer, which elevated levels may indicateBenign prostatic hyperplasia, prostate inflammation or a urinary tract infection, other conditions besides prostate cancer that may cause high levels
Related Markers
Free PSApsa_density
Common questions

What is PSA?

PSA is a protein made by the prostate gland. Both normal and cancerous prostate tissue make it.

What might a high or low PSA mean?

A high PSA level does not mean prostate cancer is present, though it is associated with a higher risk.

What is the typical reference range for PSA?

The general-population reference range shown here is < 4 ug/L. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.

What can affect PSA?

It may be higher with: Benign prostatic hyperplasia, Prostate inflammation (prostatitis), Urinary tract infections, A recent prostate biopsy, Recent urinary catheter use, Recent surgery for benign prostatic hyperplasia.

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