Normal PSA Zero?

Last Modified: February 17, 2011

Question

Dear OncoLink "Ask The Experts,"

Is a normal PSA result zero?

Answer

John Christodouleas, MD, Assistant Professor of Radiation Oncology at Penn Medicine, responds:

What we consider "normal" depends on a patient's prostate size, age and prior treatments. A patient who has never had surgery to remove his prostate or is not on androgen suppression (hormone therapy) would be expected to have detectable PSA in the blood (because the normal prostate makes PSA).

This question and answer was part of the OncoLink Brown Bag Chat Series. See the full transcript of Prostate cancer treatment: where are we now?

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