ICSI: Intra Cytoplasmic Sperm Injection

Intra-cytoplasmic sperm injection (ICSI) involves fertilising an egg by injecting it with an individual sperm.

It is useful if the male partner has a very low sperm count or if the sperm cannot penetrate the egg.

The egg is then implanted in the uterus with the same method as in IVF.

It is reported that 3,000 children are born each year thanks to ICSI with rates of success of about 25%.
  • ICSI is considered if:
    • there is a very low or no sperm count
    • the sperm are largely abnormal or have low motility
    • IVF was unsuccessful
    • there is a medical reason why the male partner cannot obtain an erection such as diabetes, spinal cord problems, or previous operations (for example, vasectomy)

For further information:
Or http://www.hfea.gov.uk/ICSI.html
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