Sometimes, the only way for a man to achieve fatherhood in a biologic way is through surgical sperm aspiration. In some men spermatozoa may not be present in the ejaculate (fluid coming out of penis during orgasm). Spermatoozoa refers to mature male reproductive cell. In such cases sperm retrieval techniques are the only way to collect motile sperm cells. There can be two reasons ... https://kjkhospital.com/microsurgical-sperm-aspiration-2/