I had an interesting conversation with a friend over brunch today where we touched upon pre-implantation genetic diagnosis.

I have written very briefly about PDG before, but I’d like to comment on it about it again here.

Why are physicians and hopeful parents practicing PGD? It can be used along with in-vitro fertilization to test embryos for certain medical conditions like cystic fibrosis, down syndrome, and I believe some certain cancers.