Intracytoplasmic sperm injection (ICSI) is an assisted reproductive technology used to treat sperm-related infertility. In the laboratory, a single sperm is injected into an egg; after 2 to 5 days, one or several of the fertilized embryos are transferred to the woman's uterus or fallopian tube.
Any embryos that implant in the uterus may result in pregnancy and birth of one or more infants.
| Author | Bets Davis, MFA |
| Editor | Kathleen M. Ariss, MS |
| Associate Editor | Michele Cronen |
| Associate Editor | Pat Truman |
| Associate Editor | Terrina Vail |
| Primary Medical Reviewer | Joy Melnikow, MD, MPH - Family Medicine |
| Primary Medical Reviewer | Kathleen Romito, MD - Family Medicine |
| Specialist Medical Reviewer | Kirtly Jones, MD - Obstetrics and Gynecology |
| Last Updated | April 7, 2006 |
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