Men who are having sperm collected for IVF/ICSI undergo the TESA treatment. It is performed under local anaesthetic in the operating room or office, and it is timed to coincide with the egg retrieval of their female spouse. The testicle is pierced with a needle, and tissue and sperm are aspirated. Men with obstructive azoospermia (s/p vasectomy) undergo TESA. When TESA fails to yield adequate tissue/sperm, an open testis biopsy is required.
Process for TESA
If no sperm is found in the vas deferens or epididymis after all PESA procedures have been completed, TESA is conducted. A tiny needle will be inserted straight into the testes, testicles, and testicular tissue will be aspirated with the plunger pulled out. TESA should also recover adequate quality and quantity of sperm, much like PESA. PESA and TESA are excellent options for couples, far superior to IUI with donor sperm since they provide the guy the opportunity to contribute to the genetic structure of his kid.