Dad 70 yrs, non alchoholic. has macrocytic anemia. hb 10. mcv 110. no blood loss. bone marrow, kidney, liver, vitamins, colonscopy normal. why anemic?

Ideas: He's not on medications and has normal thyroid, correct? He needs a reticulocyte count to determine whether these cells are big because they're young. I'd be surprised if that was the explanation. Next will perhaps be an offer of a bone marrow tap to look for myelodysplastic syndrome.

Many reasons for ane: There can be many reasons to have anemia in a 70 year old. One of the common ones is B12 deficinecy; another one is mds.But both of these will show abnormailitie sin the bone marrow.I wouldadvise that you remain under thecareof your hematologist for serial monitoring of your anemia till a cause is found. You may need a repeat bone marrow exam and also get blood levels of floic acid and B12 checked.