Why donate bone marrow or blood stem cells?
You might choose to donate bone marrow or peripheral blood stem cells because you know someone who needs either for a transplant. For example, some people donate because a doctor thinks that person could be a match for a family member.
When you sign up to donate bone marrow or peripheral blood stem cells, you join a national registry of people who have agreed they’re willing to donate bone marrow. Whether you receive a call to donate depends on whether you’re ever a match for a person who needs your bone marrow.
Read more: http://newsok.com/whats-it-like-to-donate-bone-marrow-or-blood-stem-cells/article/3685170#ixzz1y4YCjGMJ