Center for Reproductive Endocrinology

Also known as Preimplantation Genetic Screening , the purpose of this process is to evaluate the chromosomal makeup of an egg/embryo. Because the majority of miscarriages are due to chromosomal abnormalities, many couples undergo Preimplantation Genetic Diagnosis in order to select embryos that are chromosomally “normal” and increase their chances of IVF success. An egg/embryo with too many or too few chromosomes will either fall under the following: Fail to implant in the uterus Lead to a miscarriage Result in a chromosomal birth defect such as Down Syndrome or Turner Syndrome Should I have genetic testing/PGD done on my embryos? This depends on a number of factors including your age, medical history, and other risk factors. As a rule, genetic testing can improve pregnancy rates by identifying those embryos that are most likely to make a baby. The additional cost may negate the advantages for some couples. Another reason for having genetic testing done is for Gen