[presently no screen name]

First she agrees, then she reneges. Wonder if 'her partner' talked her out of it. If something happened to her, said 'partner' may have to fend for 'itself'. She may be the breadwinner and has two young kids. Too much at risk for partner.

[Kickass Conservative]

The donor is at a very low risk of harm. The patient, on the other hand, faces many hurdles, even with a "perfect match". Truth is, unless the donor is an identical twin, there is no perfect match. Sibling donors have only a 25% chance of matching at all.
I was diagnosed with leukemia last year. I only have one brother, so the odds of him being a match are slim. We haven't done a match study yet. The bone marrow transplant is a last resort treatment when chemotherapy no longer is effective. My type of leukemia (CLL) is treatable, but not curable. I've been given a 10 year window for treatment to be effective. I'll find out next month if I'm in remission. Unfortunately, being too aggressive with treatment could accelerate the disease from Chronic to Acute. Leukemia is a very tricky cancer.