An elevated reading doesn't always mean cancer. Several benign factors can cause temporary spikes:
Vigorous exercise, bike riding, or ejaculation within 48 hours of the test. Psa Levels By Age
Doctors often look at how quickly levels rise over time rather than a single snapshot. For example, a rise of more than 0.35 ng/mL in one year may prompt a closer look, even if the total number is within the "normal" range. An elevated reading doesn't always mean cancer