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Prostate-specific antigen
Also called PSA
Prostate-specific antigen (PSA) is a protein made by the prostate that can be measured in a blood test.
Doctors use the PSA blood test to help screen for prostate cancer in men without symptoms. PSA can rise because of cancer, an enlarged prostate or inflammation, so a high result is usually confirmed and may lead to MRI or biopsy. Screening age and intervals depend on national guidelines and personal risk.
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General information, not medical advice.