Background: The intacytoplasmic sperm injection (ICSI) is the assisted reproduction technique (ART) that currently offers satisfactory results to infertile couples. The use of epididymal surgical retrieval (percutanean epydidimal sperm aspiration: PESA) and testicular sperm retrieval (testicular sperm extraction: TESE) combined with ICSI has come to bring a high response to azoospermic male.
Objective: To communicate the results obtained from the Institute for the Study of Human Conception, in Monterrey, NL, with the application of the ICSI technique with ejaculate sperm and in azoospermic patients using sperm obtained from PESAor by testicular sperm extraction TESE.