TESA or Testicular Sperm Aspiration is one of the newest sperm retrieval techniques. This treatment is recommended to men with Azoospermia, a condition in which a lack of sperm is found in their ejaculate.In the past, the only options for treating azoospermia were reconstructive surgery (if there was obstruction) or donor insemination. Now, the advent of intra-cytoplasmic sperm injection (ICSI) has enabled many azoospermic men to become biological fathers using sperm obtained from their epididymis or testis
