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Prostate-specific antigen (PSA) is a protein produced by prostate cancer cells. A blood test, the PSA test, measures the level of PSA and may help to detect early prostate cancer.
This video provides an introduction to the PSA test.
The information in this video was correct as of 1 December 2010.
Your feedback can help us make more videos. Please let us know what you think|.
Men in the UK are not routinely offered PSA tests to screen for prostate cancer. There are many reasons for this:
Research hasn’t yet shown whether finding and treating prostate cancer early gives an improvement in survival. This can make it difficult to decide whether to have a test. Your doctors and nurses will be aware of this difficulty and can discuss it with you.
Men who don’t have symptoms but would like to have a PSA test should discuss it with their GP, who can give them all the necessary information and arrange the blood test if they would still like to have it.
In most men with advanced prostate cancer the PSA level will be raised. Once the cancer has been treated| the level of PSA will fall. Measuring PSA levels can help to assess the cancer and see how well treatment is working.
Content last reviewed: 1 May 2012
Next planned review: 2014
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© Macmillan Cancer Support 2013
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