My grandad has prostate cancer which he has had for four years now and is on subcut tummy injections, he also has bone cancer which is separate and not metatastic, however he has currently began having episodes of haematuria lasting approx three days, his PSA 6 months ago was 3.2 however i am worried about these episodes, im unsure if he could maybe have the injections monthly to control this or is it possible his cancer has spread to his bladder, in either case what would i need to expect?