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What is a Diagnostic Testis Biopsy?
The most common finding amongst infertile men is abnormal sperm production in terms of numbers and quality. However, a small percentage of men have a zero sperm count known as azoospermia. There are three causes for azoospermia:
1. Insufficient hormones and this is easily established by blood tests.
The last two can sometimes be differentiated by findings in the history, physical examination or on blood tests, however, there are a significant number of times when it is still uncertain. In that case, a diagnostic testicular biopsy is performed to differentiate between obstruction and a problem inside the testis.
A diagnostic testicular biopsy consists of taking a small pea sized amount of tissue out of both testes and sending them to the pathology laboratory for examination. The tissue must be handled properly in a special way for the biopsy to be worthwhile. Thus, even though the procedure is quite simple, it is best performed at a center that has a great deal of experience with male infertility.