Preimplantation Genetic Diagnosis (PGD) is usually used to detect genetic disease in early ebryos before they transferred to a surrogate mother. As for the procedure, PGD starts with IVF that includes egg retrieval and fertilization. Over the next few days, after the embryo will divide into eight cells, one or two cells are removed from it. The cells are then tested through PGD to examine if the inheritance of a problematic gene is present in the embryo. Once the procedure is competed successfully with no diseases identified, the embryo is implanted in the surrogate’s uterus. 

Pre-implantation genetic diagnosis (PGD) can currently be used to avoid over 600 genetic conditions. 

PGD increases the potential for a successful pregnancy and helps to select the best embryo(s) to achieve pregnancy or to avoid a genetic disease for which a couple is at risk.