It is an excellent procedure of in vitro fertilization that helps to resolve sperm-related issues. The ICSI process is much similar to IVF, but the fact is that the fertilization of the sperm and egg occurs in the female body instead of in a dish.
The method involves the direct retrieval of sperm from testis/epididymis and uses them to inject into the center of egg for fertilization. By using special tools and equipment for picking up the best sperms and inserting them in the egg. Both procedures are very critical, sensitive and complicated.