Testicular Sperm Aspiration (TESA) refers to a technique by which sperm is directly retrieved from the testicles. A needle is inserted into the epididymis or testis of a man UNDER SEDATION, and fluids and tissues are retrieved to extract sperm cells for ICSI (Intra-Cytoplasmic Sperm Injection) procedures.

The sperm that is then found from the testes can be either directly used for an IVF-ICSI cycle or can be preserved for later use. It should, however, be noted that while TESA is a viable option for both, Obstructive Azoospermia, as well as Non-Obstructive Azoospermia. But the chances of success of TESA are higher in men with Obstructive Azoospermia

This procedure is invasive only to a minor extent. However, the patient should remember that it is not a painful procedure, but they might feel some discomfort, like a pinprick-like sensation, for a few days.

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