If your PSA level is low and not rising after repeated tests, it's probably not a cancer recurrence. That's because other cells in your body can produce small amounts of PSA. Ideally, your post-prostatectomy PSA will be undetectable, or less than 0.05 or 0.1 nanograms of PSA per milliliter of blood (ng/mL).

Does PSA go to zero after prostatectomy?

The PSA after prostatectomy is very important. A major milestone in prostate cancer treatment is obtaining your PSA level close to zero after surgery. The expected result after prostatectomy (removal of the prostate) is an undetectable PSA or level of 0.

Is a PSA of 0 good?

The following are some general PSA level guidelines: 0 to 2.5 ng/mL is considered safe. 2.6 to 4 ng/mL is safe in most men but talk with your doctor about other risk factors. 4.0 to 10.0 ng/mL is suspicious and might suggest the possibility of prostate cancer.