I went to Mayo and would get an MRI before any biopsy. Your urologist is just going in blind and hoping to hit the lesion. Once you have the MRI results you can get an MRI fusion guided biopsy which is highly accurate. Can your urologist tell if there is more than one lesion? I did a fusion guided transperineally biopsy with 30 cores due to my large prostate 120 grams. At 70 you have Medicare and they pay for these procedures. The urologist at Mayo hit the lesion and the rest of my prostate was benign. After your biopsy results are in then Mayo will do a PSMA Pet scan to see if the cancer has spread anywhere else in your body. I had a friend who did what you are thinking of doing with his local urologist but had to do it all over when he went to Sloan Kettering in New Jersey like I told him to do at the get go. Don't do amateur hour with your health. I also did the biopsy with a local and felt nothing. A general anesthesia is not needed.