M1 ou M2 are not stages of the disease. They are the subtype of AML with which your mother was diagnosed. She is still a young patient, and this diagnosis carries a bad prognosis, unless there are specific good prognosis markers on her bone marrow
. If her doctors decided to undergo bone marrow transplantation
, is probably because your mother doesn't have any of those good prognostic factors and because se has a good donor. Having a compatible donor is good news and the fact that she is doing a BMT is a sign that her disease is in clinical remission. I think this is the correct way to proceed. Hope to have answered your query.