Understanding Prostate-Specific Antigen (PSA) Levels by Age Prostate-specific antigen (PSA) is a protein produced by the prostate gland. While it is often used as a screening tool for prostate cancer, "normal" levels are not a single fixed number; they naturally increase as you age due to the prostate's gradual growth. Typical PSA Reference Ranges by Age
Vigorous exercise, bike riding, or ejaculation within 48 hours of the test. Psa Levels By Age
An elevated reading doesn't always mean cancer. Several benign factors can cause temporary spikes: Psa Levels By Age