I went 3 1/2 years after my prostatectomy before my PSA started rising. I had Salvage radiation like you and my PSA started rising 2 1/2 years later. At that point, I was put on Lupron, And since I had 2 reoccurrence, there was no end date. After 2 1/2 years My PSA started rising again, and I went on abiraterone which kept me under control for 2 1/2 more years. Switched to Darolutamide And for 18 months, I’ve been undetectable after 15 years of PC. What i’m getting at is that you are in a situation where the correct drugs can keep you going for decades.

Yes, a UTI can raise your PSA. Get tested again find out what’s going on, Do not wait three months for a test get one done within a month or two at the most. Because you are on Lupron your PSA should drop to undetectable again. Actually, you should probably be on monthly PSA tests, I was put on monthly tests after my second reoccurrence.as have most of the people I know.