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What is prostate-specific antigen?

ANSWER

Prostate-specific antigen (PSA) is a substance produced by the prostate gland. Elevated PSA levels may indicate prostate cancer, a noncancerous condition such as prostatitis, or an enlarged prostate.

SOURCES: 

New England Journal Of Medicine.

American Urological Association. 

National Cancer Institute. 

American Cancer Society. 

News release, U.S. Preventive Services Task Force.

Reviewed by Laura J. Martin on July 4, 2019

SOURCES: 

New England Journal Of Medicine.

American Urological Association. 

National Cancer Institute. 

American Cancer Society. 

News release, U.S. Preventive Services Task Force.

Reviewed by Laura J. Martin on July 4, 2019

NEXT QUESTION:

What prostate-specific antigen level is a concern for prostate cancer?

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