Intracytoplasmic sperm injection is a specific method used during in-vitro fertilization (IVF), which is widely used to treat male infertility. ICSI is the method of inserting a single sperm directly into an egg. The sperm’s head must attach to the outer layer of the egg before syngamy may take place. Once the exterior layer is passed, the sperm enters the egg and undergoes implantation. https://healthcheckbox.com/ivf/intracytoplasmic-sperm-injection-icsi/