PSA (Prostate-Specific Antigen) – PSA is a protein made by the prostate. Levels can rise with prostate enlargement, inflammation, or cancer.
What PSA measures
PSA measures the amount of prostate-specific antigen in your blood – used to screen for and monitor prostate conditions.
Typical ranges
Under 4.0 ng/mL is often used as a general reference, but interpretation depends on age, prostate size, and trend over time. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Can reflect an enlarged prostate, inflammation, recent activity, or cancer – it requires clinical follow-up, not self-diagnosis.
What low results can mean
Generally reassuring, though PSA is only one part of prostate assessment.
How the test is done
A blood sample; avoid vigorous activity or ejaculation for 24-48 hours before testing. At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal PSA level?
Under 4.0 ng/mL is often used as a general reference, but interpretation depends on age, prostate size, and trend over time. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high PSA result mean?
Can reflect an enlarged prostate, inflammation, recent activity, or cancer – it requires clinical follow-up, not self-diagnosis.
Can I test PSA at home?
Yes. A blood sample; avoid vigorous activity or ejaculation for 24-48 hours before testing. An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.