What is TESA?
Testicular Sperm Aspiration (TESA) is performed under local or general anesthesia. A fine needle is inserted into the testis, and tissue is aspirated to extract sperm. These sperm are not motile like ejaculated sperm, but they can fertilize eggs using the ICSI technique.
TESA is often recommended for men with obstructive azoospermia (due to blockage) or non-obstructive azoospermia (reduced sperm production).