Is your father under the close supervision of a urologis? Although every case is different, a PSA of 40 can be very concerning for someone who has prostate cancer. It seems most urologists agree that PSAs are indicative of increasing tumor volume.
Perhaps consulting with his urologist to discuss and go over options would be indicated.
All the best.
Perhaps consulting with his urologist to discuss and go over options would be indicated.
All the best.