Surgical Sperm Retrieval
Some men have no sperm cells in their semen, although they are produced in the testicles.
This can be a result of:
- obstruction of the vas deferens,
- immaturity of sperm cells that does not allow them to leave the testicles.
In such cases, sperm is taken from the epididymis with a fine aspiration needle or testicular biopsy or by puncture. This process of testicular aspiration is performed under analgesia and is very effective when combined with ICSI (Intracytoplasmic Sperm Injection).