Microsurgical Testicular Sperm Extraction (Micro TESE)

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

Microsurgical testicular sperm extraction (micro TESE) 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. This procedure allows some men previously deemed infertile to become the biological father of a child.

FertilitySmarts explains Microsurgical Testicular Sperm Extraction (Micro TESE)

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.

Micro TESE 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.

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 placed in an incubator and used to fertilize previously retrieved eggs, or frozen for later use.

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