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Quick Answer. High PSA levels may indicate prostate cancer, prostatitis or an enlarged prostate, states WebMD. PSA levels in men naturally increase with age. In most cases, a PSA level under 4 nanograms per milliliter is considered normal, and men with this result have a low chance of prostate cancer. Continue Reading.
50 A PSA increase may be a sign that further treatment is needed. Increased PSA levels do not necessarily mean cancer. They can also be caused by benign prostate enlargement, infection, or surgical manipulation. If your diet is right, you may never know you even have a prostate except when your doctor asks to check it.