Hormones
PSA Total
LOINC 2857-1 · ng/mL
What it is
PSA (prostate-specific antigen) is a protein made by the prostate. The total PSA test is widely used to screen for and monitor prostate conditions.
Why it matters
It can flag prostate enlargement, inflammation or cancer, and is used to track the prostate over time.
What high values can mean
A higher value can reflect an enlarged prostate, inflammation, recent activity or prostate cancer, so it needs interpretation.
What low values can mean
A lower value is generally reassuring for prostate cancer.
How to improve it
PSA is a screening and monitoring test; the focus is interpreting changes over time, not changing the number.
Food & lifestyle
No specific food reliably changes PSA; avoid activities that can transiently raise it just before testing.
Preparing for the test
Avoid ejaculation, vigorous cycling and prostate exams for a couple of days before, as they can raise PSA — follow your lab.
When to talk to a doctor
Discuss an elevated or rising PSA with a doctor to decide on next steps.
Related markers
Sources
- MedlinePlus (NIH)
- Testing.com (AACC)
Content reviewed on June 26, 2026
Medical disclaimer
This content is for educational purposes only. It is not medical advice and does not diagnose, treat, or prevent any condition. Reference ranges vary between laboratories — always use the range printed on your report and discuss your results with a healthcare professional.
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