PSA Blood Test is useful in determining the possibilities of prostate cancer. More is the PSA amount in the body, more are the chances of the presence of prostate cancer.
PSA blood test is included in the early detection tests meant for predicting the possibilities of prostate cancer. Prostate-specific antigen (PSA) is produced by the cells present in the prostate gland. The major concentration of the substance remains in semen while some of it is also present in blood. Most of the times the PSA concentration in men who do not have prostate cancer is under 4 nanograms/mL. The probability of having prostate cancer rises with an increase in the amount of PSA detected.
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