A testicular biopsy refers to the removal of a small amount of tissue from the testes for diagnostic or therapeutic purposes.
The two testicles are the male reproductive organs. They produce sperm and the male sex hormone testosterone. The testicles are located in the scrotum, which is the fleshy pouch of tissue that hangs under the penis.
There are two different procedures for a testicular biopsy.
With percutaneous biopsy, a thin biopsy needle is inserted through the skin. The needle has a syringe on the end to collect the testicular tissue. This procedure does not require an incision or stitches.
An open biopsy is also called a surgical biopsy. Your doctor starts by making a cut in the skin. A cut also is made in the testicle. Then a small tissue sample is taken from the opening and stitches are used to close the cuts.