During ICSI, each of the retrieved eggs is placed in a dish and held still with gentle suction while a single sperm is carefully inserted into the cell using a needle. The next day it is possible to determine which eggs have been successfully fertilized. ICSI is useful for couples where the male patient has low sperm count or poor sperm morphology, since only one sperm is required to fertilize each egg. It may also be recommended for couples who have had low or no egg yield or poor fertilization success in the past, since there is greater control of fertilization.
For more information on Intracytoplasmic Sperm Injection (ICSI), click here.