2 doctors weighed in:

What does this mean? Hb 15.5mcv 77 MCH 25all other results are normal

2 doctors weighed in
Dr. Martin Rubenstein
Internal Medicine - Hematology & Oncology
1 doctor agrees

In brief: Complicated.

Low MCV usually is due to iron deficiency anemia, but not in your case since your hemoglobin is normal.
Most likely is an inherited condition called thalassemia, likely alpha thal given the relatively high Hgb level. There are number of other conditions, but if the rest of the CBC is normal and you feel well, thal is likely. If in the past your MCV was normal, it's something else and needs eval

In brief: Complicated.

Low MCV usually is due to iron deficiency anemia, but not in your case since your hemoglobin is normal.
Most likely is an inherited condition called thalassemia, likely alpha thal given the relatively high Hgb level. There are number of other conditions, but if the rest of the CBC is normal and you feel well, thal is likely. If in the past your MCV was normal, it's something else and needs eval
Dr. Martin Rubenstein
Dr. Martin Rubenstein
Thank
Get help from a real doctor now
Dr. Steven Seres
Board Certified,
19 years in practice
498K people helped
Continue
111,000 doctors available