The Second Generation of IVF Technology
Intracytoplasmic Sperm Injection
In the second generation of IVF treatment, a single sperm is injected into the oocyte plasma by microinjection, so that the sperm and the oocyte are passively combined and fertilized to create embryo. This technology is mainly used for male infertility caused by poor sperm quality. Embryologists need to select the best quality sperm from the limited semen, and then use a special needle to artificially inject the sperm into the egg cell under a microscope.