In Vitro Fertilization (IVF) Step by step part 10

Additional In Vitro Fertilization procedures

Microsurgical Epididymal Sperm Aspiration (MESA) or Testicular Sperm Extraction (TESE)

Some patients’ semen samples contain no spermatozoa due to a congenital obstruction  of the sperm ducts, vasectomy, failed vasectomy reversal, or primary testicular failure. In this conditions, an urologist can obtain sperm surgically from the epididymis (MESA) or from the testis (TESE). This sperm can be frozen and used for fertilization by ICSI.

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