Assisted Reproductive Technology (ART) Contributions by green crane

The specific methods in ART are:

• In Vitro Fertilization (IVF) is the most successful and commonly used form of ART. It is often used when a woman's fallopian tubes are blocked or when a man produces too few sperm. First, the woman is treated with a drug that causes the ovaries to produce multiple eggs. Once mature, the eggs are removed from the woman. They are put in a dish in the lab along with the man's sperm for fertilization. After 3 to 5 days, healthy embryos are implanted in the woman's uterus.

• Zygote Intrafallopian Transfer (ZIFT) or Tubal Embryo Transfer is similar to IVF except the very young embryo is transferred to the fallopian tube instead of the uterus.

• Gamete Intrafallopian Transfer (GIFT) involves transferring eggs and sperm into the woman's fallopian tube. The fertilization occurs in the woman's body rather than in a laboratory. This method is not commonly used.

• Intracytoplasmic Sperm Injection (ICSI) is often used for couples in which there are problems with the sperm. This method involves injecting a single sperm into a mature egg. Then the embryo is transferred to the uterus or fallopian tube.