ICSI
What is ICSI?
ICSI (IntraCytoplasmic Sperm Injection) is a fertility procedure used within the IVF (in vitro fertilization) process. ICSI fertility treatment is carried out by injecting a single sperm into an egg, which is then transferred into the womb.
ICSI is used as a fertility procedure when the man has a low sperm count, doesn’t produce enough good-quality sperm that are able to reach and penetrate the egg, or has problems concerning anti-sperm antibodies.
ICSI helps bypass the need for donor sperm. Some couples move from IVF treatment to ICSI if they can’t retrieve enough viable eggs to be fertilized in vitro.
How is ICSI carried out?
The woman first takes fertility drugs to stimulate the ovaries for fertilization while the man produces a sample of sperm. If he has no sperm in his semen, doctors extract it under anesthesia using a needle. The doctor removes the woman’s eggs with a needle and a single sperm is injected into an individual egg. The fertilized eggs become embryos and are transplanted into the uterus. Any remaining embryos may be frozen for possible use in the future.
How often is ICSI used?
According to the Centers for Disease Control and Prevention, nearly half of all IVF procedures in the United States involve ICSI. ICSI is one of the most successful procedures for treating male infertility.
What are the chances of success with ICSI?
The chances of a successful ICSI varies between clinics and are dependent on the woman’s age, male and female reproductive health, doctor’s experience and methods used, among other factors.
According to the Human Fertilization & Embryology Authority from the UK, the percentage of ICSI cycles in 2006 that resulted in a live birth was as follows:
Woman’s Age | Chances of a live birth as a result of ICSI |
under 35 | ۳۳.۲ % |
۳۵–۳۷ | ۲۷.۱ % |
۳۸–۳۹ | ۲۰ % |
۴۰–۴۲ | ۱۱.۵ % |
۴۳–۴۴ | ۴.۵ % |
over 44 | ۸.۵ % |