In theory that's possible, and if it works for you, fantastic. The NHS says you have a right to a PSA test via your GP if you're age 50 or more.
However, we know that tens of thousands (maybe close to 100,000 by now) men who would usually have been checked by GP's and found necessary to refer to urology for further checks have not been since the start of COVID. This has lead to over 14,000 men with prostate cancer who would normally have been diagnosed and treated by now but have not been, and are unaware they are walking around with undiagnosed prostate cancer which over time becomes less likely to be cured.
One of the biggest barriers to detecting these men is inaccessibility of GP face-to-face appointments, which is where prostate cancer tends to come up in discussion. There are also still too many GPs who are a decade or more out of date with the diagnostic pathway and try to dissuade their patients from PSA tests on the basis of no symptoms, which we now know to be very wrong. Some GPs even fail to refer patients when PSA is in the range where they should have done so. The referral rate for prostate cancer is still well behind pre-pandemic levels and is the worse of all cancer types in this respect, so the number going undiagnosed is getting worse. This is in contrast to breast cancer where referrals are running well over pre-pandemic levels, which means the pandemic backlog is being cleared.
So the situation with GPs is far from ideal, and you really mustn't let that put you off being tested if you are at risk (e.g. aged 50 or more)
- you could be one of the 14,000 missing men. So knowing there's another route to get a PSA test is valuable. There are also free charity tests in some areas, and in some other areas, the tests by post are subsidised by local charities - the same site lists many of those too.
Andrew