Percutaneous testicular biopsy, or TESA, is performed by a puncture with a special needle attached to a syringe. Therefore, no incision is necessary.
This type of biopsy is less aggressive than TESE, but less sperm is obtained.
By Blanca Paraíso MD, PhD, MSc (gynecologist), Cristina Mestre Ferrer BSc, MSc (embryologist), Marta Barranquero Gómez (embryologist) and Romina Packan (invitra staff).
Last Update: 05/06/2020