In what situations do couples consider preimplantation genetic diagnosis, or PGD, and should all of these couples undergo genetic counseling prior to PGD? What is the process for PGD? How accurate has PGD testing become, and what are its remaining limitations? How does preimplantation genetic screening differ from PGD? Host Dr. Lee Freedman addresses these questions and more with Dr. Anuja Dokras, medical director of the in vitro fertilization program at Penn Fertility Care and associate professor of obstetrics and gynecology at Penn Medicine.