Testicular biopsy is a procedure in which a small portion of testicle is removed for examination. The biopsy is performed by creating a small incision in the skin of the scrotum. A small piece of the testicle tissue is removed through the incision by snipping the sample off with small scissors. The test is usually performed when a semen analysis suggests that there is abnormal sperm, and other tests have not determined the cause. It may also be performed when testicular self-examination has revealed a lump.
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine; Scott Miller, MD, Urologist in private practice in Atlanta, Georgia. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.