P.E.S.A

Percutaneous Epididymal Sperm Aspiration (PESA) and Testicular Sperm Aspiration (TESA) are procedures used in the management of obstructive and nonobstructive azoospermia (no sperm in the ejaculate). A fine needle is passed into the tubes leading out of the testicles, or the testicles themselves, to retrieve sperm.