Hi, are you sure it's sideroblasts and not blasts.
If it's blasts, then dropping to almost none is a very good thing

. If it's sideroblasts, I don't know what it means. It seems as if that would be good but as I've never heard of anyone have their sideroblasts drop I really don't know.
I haven't got my biopsy results with me but I think my blast count was %10 at one stage and dropped to 4% (anything below 5% is good) but my sideroblasts were 78% and have never dropped below 53% (to the best of my recollection). I remember my doctor commenting that the sideroblasts weren't as important.
Sorry I'm not much help.
Regards
Chirley