Prostate specific antigen
Psa is a protein made in the prostate gland that functions to liquefy sperm. It is a serine protease made by both normal and malignant prostate glands. Commonly used as a screening test for prostate cancer, the psa test is widely used to detect which men would benefit from a prostate biopsy as well as detect cancer recurrence in men who have been treated for prostate cancer.
Dr. Darren Mack reviewed this
14 year experience in Urology
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Related questions
A 25-year old asked:
How long does the prostate specific antigen take?
2 doctor answers • 11 doctors weighed in
A 45-year old asked:
What's a normal time to get a prostate specific antigen score?
1 doctor answer • 2 doctors weighed in
A 30-year old asked:
What is the function of prostate-specific antigen in normal males?
1 doctor answer • 1 doctor weighed in
A 28-year old male asked:
What is the definition or description of: prostate specific antigen?
2 doctor answers • 3 doctors weighed in
A 33-year old asked:
Can you please explain the function of prostate-specific antigen in normal cells?
1 doctor answer • 1 doctor weighed in
A 19-year old female asked about a 57-year old male:
Psa prostatic specific antigen of my father is 1.87 ng/ml is that normal?
1 doctor answer • 2 doctors weighed in
A 25-year old male asked:
My result of total prostatic specific antigen is 0.5 ng/ml and i find that below 4 ng/ml is fine. Does the result mean i don't have enlarged prostate?
2 doctor answers • 3 doctors weighed in
A 47-year old asked:
Is prostate-specific antigen (psa) used to monitor efficacy of therapy?
2 doctor answers • 5 doctors weighed in
A 41-year old asked:
Is it a problem if my doctor uses psa (protein specific antigen) tests instead of a digital rectal exam for the prostate?
1 doctor answer • 3 doctors weighed in
A 35-year old female asked:
How long does it take for tumor specific antigen blood work results to come in?
1 doctor answer • 2 doctors weighed in
A 34-year old asked:
Do specific hla antigens predispose someone to ischemic heart disease?
2 doctor answers • 2 doctors weighed in
A 37-year old female asked:
I read that you have millions of B cells. How does one B cell find the right specific antigen it fits to if there's so many of them?
1 doctor answer • 2 doctors weighed in
A 29-year old male asked:
Is there a specific enema that helps relieve of prostate problems (ie. Hot, warm or cold, salt water... Etc.)?
1 doctor answer • 1 doctor weighed in
A 60-year old male asked:
Will having sex too soon after tumt procedure for enlarged prostate cause any problems with recovery? Please be specific.. Had tumt 1/10/2014.
2 doctor answers • 3 doctors weighed in
A 59-year old male asked:
Using flomax (tamsulosin) for enlarged prostate. Do super beta and saw palmetto both shrink the prostate? Please be specific about benefits of each.
1 doctor answer • 3 doctors weighed in
A 32-year old male asked about a 76-year old male:
There is some natural products, that together with the specific medication, can somehow help in the prostate cancer treatment? Thank you so much.
2 doctor answers • 2 doctors weighed in
A 38-year old male asked:
38y.o. man w/ mildly enlarged prostate noted incidentally on pelvic mri. Path report recommended more specific prostate mri but doc thought unnecessary due to psa being wnl (.9 psa & 32.2% free psa). Worrisome for cancer? Push for mri or no big deal?
2 doctor answers • 2 doctors weighed in
A female asked:
Why does he have blurry vision after a prostate operation? My dad had an operation to have the prostate cancer removed 3 weeks ago. He already has a mild case of COPD & had to take specific amounts of anesthesia accordingly. What should have been a 2-4 ho
3 doctor answers • 3 doctors weighed in
A 16-year old male asked:
My h.C.B.C.(tri-dot) is non reactive and australian antigen(hbsag) is absent. Is it normal?
1 doctor answer • 1 doctor weighed in
A 44-year old female asked:
What does a low antithrombin III antigen mean?
1 doctor answer • 1 doctor weighed in
A 45-year old asked:
If hepatitis b e antigen, serum is non reactive, what does it mean?
1 doctor answer • 2 doctors weighed in
A 25-year old female asked:
Hi doctors !what is Rh disease is good or bad for a man to be Rh b negative , what is antigens ?
2 doctor answers • 4 doctors weighed in
A 25-year old male asked:
Is it possible that the 4th generation test with the CMIA method only detects antibodies, not antigens?
1 doctor answer • 1 doctor weighed in
A member asked:
What's the difference on Antibodies/Antigens on the exterior of the cell vs the interior while testing and worried about the sensitivity/accuracy?
1 doctor answer • 1 doctor weighed in
A 33-year old male asked:
HSV Antigen 1+2 IgG test report 1.77. it is serious concern.
1 doctor answer • 1 doctor weighed in
A member asked:
My hep b surface antigen is reactive it means im positive of virus ?
1 doctor answer • 1 doctor weighed in
A 34-year old asked:
What are the molecules present in antigens of people with blood group A?
1 doctor answer • 3 doctors weighed in
A 45-year old asked:
If my EBV nuclear antigen test is high could I have had mono 3 months ago?
1 doctor answer • 1 doctor weighed in
A 38-year old asked:
How is it that cord factor antigen aid in the diagnosis of mycobacterium tuberculosis?
1 doctor answer • 1 doctor weighed in
A 18-year old male asked:
I tested hiv using the fourth generation antigen and antibody on day 39 it tested negative is it conlusive?
2 doctor answers • 2 doctors weighed in
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