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Fertility Glossary

MESA

Microsurgical collection of sperm from the epididymis.

Male fertility

Microsurgical epididymal sperm aspiration uses an operating microscope to collect epididymal fluid through a small incision. It typically yields more sperm than PESA, allowing several samples to be frozen for future ICSI cycles from one procedure.

Also known as: microsurgical epididymal sperm aspiration

Sources

  • Healthy Male (healthymale.org.au)
  • Healthdirect Australia (healthdirect.gov.au)

Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only โ€” always follow the advice of your own clinic, doctor or pharmacist.

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