Learn something new every day. I get a PSA test every year. Interestingly, all my doctors in the past have given me the finger, then sent me to the lab (I always fast before a physical). Is this somewhat new info?
There has been a debate about short-term rising of the PSA level after a DRE for quite a few years now. There is literature on both sides, although I will say a lot of the more recent literature is not finding a rise. This may have to do with increasing sensitivity and accuracy of the PSA test. There is also literature showing short-term rises after ejaculating.
More to Ben's point, however, is using the PSA at all for routine screening. Many reputable professional organizations in recent years have come out against PSA testing as surveillance for low-risk individuals. They feel the risks and mortality of testing outweigh the benefit, since the typical male will die of something else before dying of prostate cancer. Many equally reputable professional organizations still recommend PSA as routine surveillance for all men. It is recommended that the patient make his own choice after consulting with his healthcare provider.
Speaking only for myself, as I have synthesized the literature, recommendations and standard of care, I am getting a PSA at five year intervals and I have the blood draw done before I go in for the annual visit and have the DRE, and will avoid ejaculating within 48 hours before the blood draw. I have decided that if I have an elevated level with this approach, it is more likely to be a true elevation, instead of a false elevation artifact from DRE or ejaculation, thus requiring a repeat test to find out if it is a true elevation.
As a general rule, I have my internist send in the lab orders a week or so before my visit and I have the blood and urine specimens done before the visit. That way, if there is anything interesting on the labwork requiring followup, we can discuss it and do so at the actual annual exam visit, as opposed to making a followup appointment after the annual exam.
Having said all this, there are still lots and lots of providers who do the PSA every year, and after the DRE. This is within the standard of care.