Hi. I'm new to this site. My dad who is 79 was diagnosed 8 years ago with prostrate cancer and has been on hormone therapy with excellent results. His PSA had been 0.1 (ish). He had the injections every 3 months. Last year it went up to 5.5. 6 months ago it was 10. A year ago he changed gp's and they decided to change his injections to every 6 months. Today he was told his osa level was 57!. He had an appointment with urology next week to discuss. I guess a bone scan and then discuss again. His urologist discharged him to his GP years ago as he was doing so well. I'm not sure how serious a level of 57 is. I'm not sure how to interpret it. Any help much appreciated x