It is an open operation done using an operating microscope. This technique is used in men who have no sperm in the semen. It is a condition caused by an obstruction in the tube that carry sperm from the testicles to the penis (known as vas deferens). Men who have a vasectomy may also be a candidate for MESA.
The procedure is usually carried out under general anesthesia by a consultant urologist. A small incision will be made in the scrotum to open the epididymis. After that, the sperm will be removed. If the epididymis is absent or blocked, sperm will be retrieved from the testicles. A large number of sperm can be retrieved through this technique. The sperm will be frozen and preserved for further use. This technique does not have any risks associated. The recovery time required is very less.