Something you may or may not clearly understand is this simple fact: PSA is not a cancer test. It is a test of prostate activity, it's like the "check engine" light on your car. It means something is going on down there, and further investigation is required.
Lots of things can cause an elevated PSA as others have noted: Infection, sex, bike riding, a DRE done within 48 hours of the blood draw.
Congrats to you for keeping tabs on your PSA over time, the trend is what matters, much more than the actual number. A certain amount of fluctuation is normal (+/- a few percent). All that being said, if you and your doctor are truly worried about
whether PC is happening with you, the only definitive way to know is to have a biopsy done.
And, at your age, you have a high probability of having diagnosable prostate cancer. Past the age of 50, your odds of having PC at a low level is roughly equal to your age. The challenge, then, becomes this: what am I going to DO with that information once I get it? You're at an age point where the treat or not dilemma would hit you full force, especially if it's at a low grade.
Best of luck to you JGB, and if you do choose to get a biopsy to fully understand what might (or might not) be going on, come back here with the results and we'll work with you to understand what it means.
PS: you'll find that in this forum, a lot of us a data driven types, and we like treatments and systems that have solid, verifiable data to go with them. The kind of thing you're asking about
falls into the category of snake oil for many of us--so 'trust but verify' is a valid idea for us, and if the verify part isn't there, then the trust isn't there either. Many of us have made dietary changes post-diagnosis, and many take some of the standard vitamins and supplements. And we still stay in the middle of mainstream medicine when it comes to treatment.
Oh, speaking of supplements: are you on a prostate supplement that contains saw palmetto? Saw palmetto has the effect of suppressing PSA. My urologist told me that I needed to double my PSA reading because of it. Or, stop taking it for at least a month before the next PSA. A steadily rising PSA under the influence of saw palmetto suggests that the rise is not because of BPH (old man prostate swelling).
Age at Diagnosis: 56
Biopsy: 3 of 12, G3+3, all on LT side, 20%, 5%, 3%
Clinical Stage T2C
Bone Scan, CT scan negative for spread
RALP on 2/17/15, BJC St. Louis, Dr. Figenshau
58.5g, G3+4, 20%, 4 quadrants involved
PSA 3/10/15: 0.10
My Story: www.healingwell.com/community/default.aspx?f=35&m=3300024