الفهرس 
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Abstract
The knowledge of reproductive medicine has expanded rapidly since the birth of Louise Brown, the first baby to be conceived by in vitro fertilization, which was performed by Professors Steptoe and Edwards in Bournhall, England, in 1978.In vitro fertilization means the fertilization of an oocyte with sperm outside the body. Several drugs are used to hyperstimulate the ovaries : Clomiphene citrate,Gonadotropins ,GnRH agonists, GnRH antagonists, and recently aromatase inhibitors. Many methods have been described for the retrieval (pick-up) of oocytes IVF. Laparoscopic and ultrasound guided transvaginal retrieval.Preimplantation genetic diagnosis (PGD) is now the field for research in order to increase the rate of implantation .The embryo transfer (ET) process represents the culmination of the IVF cycles.Blastocyst transfer would provide a better synchrony between the uterine endometrium and the embryo.Cryopreservation allows the storage of supernumerary embryos while oocytes, ovarian tissues and testicular tissue are still under trial.
Key Words: In vitro fertilization - Controled ovarian Hyperstimulation – Oocyte retival-Sperm retrival- endometrial receptivity- Embryo Transfer –Preimplantation Genetic Diagnosis-Cryopreservation.