Good to knowOne result rarely tells the whole story. Your provider looks at your results together with your symptoms, exam, and other tests.
What the test is
PSA can be high for many reasons besides cancer, like an enlarged prostate, infection, or recent ejaculation.
Screening is a personal decision, usually discussed from ages 55 to 69, or earlier for Black men and those with a family history.
Why it's done
- Prostate cancer screening after talking with your provider
- Following prostate cancer treatment
Getting ready and what happens
- Avoid ejaculation and long bike rides for 2 days before.
- Tell your provider if you take finasteride or dutasteride; they lower PSA by about half.
How the test is done
- A health worker cleans the skin, puts a band around your arm, and draws blood from a vein with a small needle. It takes a few minutes.
What the results mean
| Result | Typical range for adults |
|---|---|
| Traditional cutoff | Below 4.0 ng/mL (many doctors also look at age and how fast it rises) |
Normal ranges vary from lab to lab and can differ by age, sex, and pregnancy. Your report lists your lab's own range next to each result. A result a little outside the range is often not a problem.
High
Usually rechecked. An MRI or biopsy may be suggested. Most men with a mildly high PSA don't have prostate cancer.
Rising over time
A steady rise may matter more than a single number.
Questions to ask your provider
- What do my results mean for me?
- Do I need to repeat this test or have other tests?
- What are the pros and cons of screening for me?
- Should we repeat the test?
- Do I need an MRI?
Risks
A blood draw is very safe. You may have slight pain or a small bruise where the needle went in.
Related conditions
Related medicines
Related tests
Sources
Last updated 2026-11-13.