A bladder biopsy is performed if abnormalities of the bladder are found, or if a tumor is grossly visible. During the biopsy a small portion of tissue is removed and sent to the laboratory for analysis.
Review Date 4/26/2020
Updated by: Kelly L. Stratton, MD, FACS, Assistant Professor, Department of Urology, University of Oklahoma Health Sciences Center, Oklahoma City, OK. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.