I share your concern, Roy. Like you, I had RARP in Feb 2023. Fortunately, since then, my PSA levels have all been <0.02 'undetectable'
Presumably, in the two and a half years since surgery, your PSA checks have all been <0.1 undetectable, then jumped up to 2.3, six months later. Had this happened to me, like you, I would find it alarming.
What was your pre-op PSA level? What was your post op histology? Did you have a very high Gleason score? Did you have any extraprostatic extension? Did you have any positive margins?
I've been on this forum for over two years and cannot recall a similar, sudden rise like yours.
Have you had any clinical feedback yet?
I'm not medically trained mate, but if I were in your position, I'd be asking for an immediate PSA retest, or urgent consultation.
Good luck.