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What are normal prostate-specific antigen levels?

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In the past, most experts viewed prostate-specific antigen (PSA) levels less than 4 ng/mL as normal. Because of the findings from more recent studies, some recommend lowering the cutoff levels that determine if a PSA value is normal or elevated. Some researchers encourage using less than 2.5 or 3 ng/mL as a cutoff for normal values, particularly in younger patients. Younger patients tend to have smaller prostates and lower PSA values, so any elevation of the PSA in younger men above 2.5 ng/mL is a cause for concern.

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

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What should you know about the prostate-specific antigen blood test?

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