When the time comes to utilize your cryopreserved eggs, a portion or all of them will undergo a thawing process. Subsequently, they will be fertilized using a technique called intracytoplasmic sperm injection (ICSI). ICSI is essential due to the egg's protective coating becoming hardened during freezing. Consequently, a specific sperm is meticulously chosen and injected into the egg to facilitate fertilization. The decision regarding the extent of eggs to thaw and use, as well as the implementation of ICSI, should be deliberated with your fertility specialist, considering factors like your egg count, the age at which the eggs were frozen, and the quality of your partner's semen.