The reference range of serum PSA level increased from 0.71 to 2.35 ng/ml with advancing age group. The authors suggested that the variations of serum PSA level could be either due to inherited susceptibility associated with genetic factors or other factors that influence serum PSA level. The increase in serum PSA level with advancing age group Other common causes of raised PSA levels include benign prostate hyperplasia, recent sexual activity, an infection in the prostate, or a recent digital rectal examination. Some people with prostate cancer have normal PSA levels for their age range. Free PSA or free-to-total test. Your doctor may also suggest that you have a free PSA test. The study also noted that for African-American men aged 40 to 54, even PSA levels within a normal range still showed an increased risk for prostate cancer. The PSA test controversy Benign prostatic hyperplasia, a noncancerous enlargement of the prostate gland, is the most common benign tumor found in men. As is true for prostate cancer, BPH occurs more often in the West than in Eastern countries, such as Japan and China, and it may be more common among black people. Not long ago, a study found a possible genetic link for It's normal to have a low level of PSA in your blood. A high PSA level may be caused by: Prostate cancer; An Age. The risk of prostate cancer increases after age 50. Lab Tests Online [Internet]. American Association for Clinical Chemistry; c2001-2018. Prostate Specific Antigen (PSA); [updated 2018 Jan 2; cited 2018 Jan 2]; [about 2 Prostate-specific antigen (PSA) is a glycoprotein produced by the prostate gland, the lining of the urethra, and the bulbourethral gland. The total PSA range of 4.0 to 10.0 ng/mL has been described as a diagnostic "gray zone," in which the free PSA:total PSA ratio helps to determine the relative risk of prostate cancer (see table lofX7K.

psa normal range by age