Understanding Your PSA
The PSA (Prostate-Specific Antigen) test is a blood test used to screen for prostate cancer and other prostate conditions in men.
What It Measures
PSA is a protein made by the prostate gland. A small amount normally circulates in the blood, and levels tend to rise with prostate problems.
PSA is not cancer-specific. It can go up for several reasons, including an enlarged prostate, infection, recent ejaculation, or riding a bike before the test.
What Your Results Can Mean
| Result | What It Means |
|---|---|
| Normal / LowReassuring | A lower PSA makes significant prostate cancer less likely, though no test is perfect. |
| ElevatedNeeds Follow-Up | Can be caused by benign enlargement, infection, or cancer. A single high value does not diagnose cancer; it prompts a closer look. |
| Rising Over TimeWatch the Trend | A steady upward trend can be more meaningful than any single number. |
What’s Most Important to Know
PSA screening is a personal decision with benefits and trade-offs. It can catch cancer early, but it can also lead to further testing for harmless causes. Dr. Mui will talk through whether and how often screening is right for you.
If your PSA is elevated, the next step is usually a repeat test or a referral, not immediate alarm.
This page is for general education and does not replace a conversation with your doctor about your specific results. Want to review your results? Book a visit and we’ll go through them together.