different types of prostate biopsies
The Prostate Cancer Biopsy Procedure. 1  The prostate biopsy is the taking of tissue samples from the prostate gland and examining them underneath a microscope for cell differentiation. 2  Before the Prostate Biopsy. 3  Types of Prostate Biopsies. There are three types of prostate biopsies: the transrectal, the transurethral, and the transperineal. The transrectal prostate biopsy is guided by the transrectal ultrasound (TRUS) through the anus and into the rectum.