Some physicians go like "Let's wait and check PSA again and see how it's going". Be watchful. When my hub got PSA 0.2 , two or three years after RP, that was just what the urologist said. Thankfully, a different urologist saw him the following appointment. At that moment PSA was over 0.3 and he was referred to onco. Then given PSMA PET SCAN, two spots clearly located, therefore easier to fight them. He was put in HT and given RT.
Still in HT . Last PSA this week 0.01
Next appointment with both onco and uro in 2 weeks.
Good luck.