In Vitro Fertilization
These are the most common ART procedures. They are used to treat infertility problems caused by adhesions, endometriosis, sperm antibodies, low sperm count, and unexplained infertility. The eggs are retrieved and then processed by the laboratory. They are isolated and mixed with properly processed sperm, and are then placed in an incubator where fertilization takes place. After oocyte fertilization, embryos that have developed satisfactorily are transferred into the uterus four days after egg retrieval.