Transrectal biopsy. An ultrasound probe is inserted in to the rectum to show the place the tumor is. Then a needle is inserted through the rectum to the prostate to remove tissue with the prostate. Which challenge it's possible you'll get is dependent upon the type of prostate dilemma you've. https://www.sgvascularctr.com/the-definitive-guide-to-enlarged-prostate-treatment-in-singapore/