Editorial: Challenges of Genetic Screening of in Vitro Fertilized Human Embryos Using Current Technologies

Human is usually sub-fertile in comparison to other mammals; in other words, reproduction process of other mammals is more effective than human. chromosomal anomalies of early embryos are the major reason for the low fecundity of human per cycle. most of embryos with major genetic defects may be implanted and it can be followed with stopping of early development and early embryo loss with no tangible evidence of pregnancy. in addition, several studies have shown that more than 70% of embryos from assisted reproductive technologies have genetic anomalies. these anomalies lead to implantation failure or early embryo loss following implantation in ivf cycles.