PESA (Percutaneous Epididymal Sperm Aspiration) and TESA (Testicular Sperm Aspiration) are minimally invasive surgical techniques used to retrieve sperm from men who have Obstructive Azoospermia, meaning sperm production is normal but a blockage prevents it from reaching the ejaculate. PESA involves the aspiration of fluid from the epididymis (a coiled tube that stores sperm) using a fine needle, while TESA involves aspirating tissue and sperm directly from the testicle itself. Both procedures are typically performed under local anesthesia and are quick, requiring no large incisions. The retrieved sperm, whether from the epididymis or the testicle, is then prepared for immediate use in an IVF cycle paired with ICSI (Intracytoplasmic Sperm Injection), as these aspiration methods yield fewer sperm than ejaculation.
Consultant Andro-urologist
Consultant Urologist, Male Infertility Expert
Consultant Urologist, Male Infertility Expert
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