What is TESE / TESA?
TESE (testicular sperm extraction) and TESA (testicular sperm aspiration) obtain sperm directly from the testis when ejaculated sperm are absent or unusable, for use with ICSI. Needle aspiration (TESA) or open biopsy extraction (TESE) gathers tubules or aspirate for embryology; samples may be used fresh or frozen.



