Microsurgical Testicular Sperm Extraction (MicroTESE)

Definition - What does Microsurgical Testicular Sperm Extraction (MicroTESE) mean?

Microsurgical testicular sperm extraction (microTESE) is a procedure used to obtain sperm from the testes of men with non-obstructive azoospermia (NOA). Sperm removed using this process can then be frozen for later use or injected into an egg cell to achieve fertilization. This procedure allows some men previously deemed infertile to become the biological father of a child.

In azoospermic men, MicroTESE improves the sperm retrieval rates and requires less testicular tissue to be removed than testicular sperm extraction (TESE)

FertilitySmarts explains Microsurgical Testicular Sperm Extraction (MicroTESE)

Non-obstructive azoospermia is a condition in which a man's semen contains no sperm because of an abnormality in sperm production. Men with this condition often have small amounts of sperm present within tubules inside their testicles.

MicroTESE is a procedure which was developed to remove these testicular tubules and extract the sperm from them. This process involves making a small incision in the scrotum, opening the testes, and using an operating microscope to identify and remove specific tubules which are likely to contain sperm. It is typically performed in an operating room under general anesthesia.

Once the tubules are removed, they are examined in a lab. A microscope is used to search for sperm within the tubules. If sperm is found, it can either be used to fertilize previously retrieved eggs, or frozen for later use.


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