PSA

Definition / meaning of PSA

A protein made by the prostate gland and found in the blood. PSA blood levels may be higher than normal in men who have prostate cancer, benign prostatic hyperplasia (BPH), or infection or inflammation of the prostate gland. Also called prostate-specific antigen.

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Find More About 'PSA'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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