Diagnostics·Diagnostics
PSA test
Informed by recognized medical guidance
Overview
The PSA test is a blood test that measures the level of prostate-specific antigen (PSA), a protein made by the prostate gland. It is often used to help detect prostate cancer or other prostate problems, but a high PSA does not always mean cancer.
Key facts
- PSA is a protein produced by the prostate gland; levels can rise due to cancer, infection, or benign enlargement.
- The PSA test is not a cancer diagnosis – a biopsy is needed for confirmation.
- Many factors (ejaculation, recent medical procedures, infections) can temporarily raise PSA levels.
- Doctors recommend shared decision-making before testing, weighing pros and cons.
Yes, the PSA test is one of the most common screening tests for prostate cancer in men, especially those over 50 or with risk factors.