Posted 10/3/2013 8:10 AM (GMT -6)
A PSA of 4.0 was the long time old standard whereby a doctor would typically refer a patient to a urologist to see if a prostate biopsy was warranted. With some of the newer thinking, 4.0 is no longer an exact line in the sand. They also look now at PSA velocity, which is another factor.
However, a PSA of 4.0 is not a guarantee of prostate cancer, but it could be. It could also be the sign of a prostate infection, an enlarged prostate or both.
Even if a biopsy is ordered, a typical 7-12 core biopsy is no guarantee that it will find any cancer if present. In my case, it took 3 biopsies spread over about 15 months to find my cancer. It was there all along, the first (2) 12 core biopsies simply missed the cancer, the third one found it.