Yes, I understand the issues for the NHS and said that in my post. In my case, the PSA was a 100% indicator of Prostate Cancer.
Interesting about your mate. With no symptoms and a low PSA, why did he have further scans and a biopsy? There must have been something that made the doctors want to go that far. Was it a physical exam? No harm in having both if that’s what it takes but yes, it will be a big cost to the NHS.
But then they regularly screen for bowel cancer (from 54) and breast cancer (50?). Why should prostate cancer be any different? Let’s face it, there is currently no screening programme for this - it’s totally reliant on people asking the doctor, which is what happened in my case.