Alternative Names Prostate-specific antigen; Prostatecancer screening test Normal Values No certain PSA level that is called normal or abnormal. No PSA level means you do or do not have prostate cancer. Remember that the PSA test cannot diagnose cancer. Only a biopsy can diagnose cancer. Always discuss PSA test results with your doctor Your doctor will look at your PSA results and must consider your age, your race, medicines you are taking, and a number of other factors to decide whether your PSA is normal and whether you need more tests done. Older men typically have slightly higher PSA levels than younger men. Normal ranges by age group commonly used include: Men below age 50: PSA less than 2.5 Men 50 - 59 years: PSA level less than 3.5 Men 60 - 69 years: PSA level less than 4.5 Men older than 70 years: PSA level less than 6.5 Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results. What abnormal results mean A high...
Dear Dr. Greenstein:
My friend ,who is in his early 50s, just got the results of his annual PSA test - it was between 4-5. The results of his previous 6 annual tests were in the 1-2 range every year, until now. His brother recently had his prostate removed due to cancer.
He now has to see a specialist. We are both very concerned, but should we be that worried?
First, I never tell people to worry before we have all the answers. In this situation, it is crucial to know if this man has any new voiding problems such as burning, slow stream or the sensation he is not emptying his bladder. These symptoms can indicate prostate inflammation, which can falsely elevate the PSA value. In those cases, a course of antibiotics are warranted and the PSA can be repeated after finishing the antibiotics.
If the PSA normalizes then this man can continue to have his prostate examined every 6 - 12 months. The physical exam is also very important. The discovery o...
Dear Dr. Motola,
If a person has a low PSA can you attribute this to any particular factor or factors? In other words are there any medical reasons for a low PSA? A friend told me that there has to be mitigating factors for this low score.
A low PSA is usually desirable as it will be associated with a lower likelihood of prostate cancer . Prostate cancer is not always associated with an elevated PSA as tumors that are very high grade may be associated with normal PSA . This occurs because high-grade tumors are very dissimilar to normal prostate, and as a result lose their ability to secrete PSA. Most often these patients will have very abnormal digital rectal examination. Patients taking Proscar or Avodart may often have low PSA values. This group of patients needs to have careful scrutiny of the interpretation of their PSA.
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