by Meredith Weiss
Cord blood is the blood from the umbilical cord that supplies nutrients and oxygen to an unborn child. This blood is a non-controversial source of "stem cells," which has the ability to differentiate into any type of blood cell and stimulate new growth throughout the body. Historically, cord blood was discarded as medical waste, but now expectant parents have the option to cryogenically store ("bank") these cells at the time of birth and store them for years until they're needed.
Cord blood stem cells are being used in the treatment of over 40 life-threatening diseases. The cells may be a match for siblings (1:4) and parents and are a perfect match for the newborn itself. Many of the current treatments are for disorders that are not carried through family genetic history. Every year more parents are choosing to bank their newborn's stem cells, and scientists are looking to cord blood for treatments of more common diseases such as heart disease and diabetes. While the first cord blood transplant occurred in 1988, almost half of the 6,000 total transplants have occurred in just the past two years.
Copyright © Meredith Weiss. Permission to publish granted to Pregnancy.org, LLC.

Comments
In my very strong opinion,banking cord blood should not be controversial what-so-ever. In fact, due to the benefits the cord blood may one day offer if ever necessary, banking it should become a requirement or automatic. The only thing that should be controversial is the COST involved. It's to bad that it's so expensive because everyone should do it and so many can't afford it. I say this because I understand the huge medical benefits that can come from core blood.