Transrectal biopsy. An ultrasound probe is inserted into your rectum to show exactly where the tumor is. Then a needle is inserted with the rectum into your prostate to eliminate tissue in the prostate. Use our scientific demo search to find NCI-supported cancer scientific trials which can be accepting patients. https://www.sgvascularctr.com/the-definitive-guide-to-enlarged-prostate-treatment-in-singapore/