Blood count
MCH
LOINC 785-6 · pg
Ranges
Reference range: 27–33 pg
What it is
MCH (mean corpuscular hemoglobin) is the average amount of hemoglobin inside a single red blood cell.
Why it matters
Together with MCV and MCHC, it helps classify the type of anemia and points toward its cause.
What high values can mean
A higher value is often seen alongside larger red cells, as in B12 or folate deficiency.
What low values can mean
A lower value is typical of iron-deficiency anemia, where cells carry less hemoglobin.
How to improve it
Because MCH follows the underlying cause, correcting iron or vitamin status is what shifts it.
Food & lifestyle
Iron, B12 and folate from a balanced diet support normal red-cell hemoglobin content.
Preparing for the test
Part of a complete blood count (CBC); fasting is not required.
When to talk to a doctor
An abnormal MCH is interpreted by a doctor with the rest of your red-cell indices, not on its own.
Related markers
Sources
- MedlinePlus (NIH)
- Testing.com (AACC)
Content reviewed on June 26, 2026
Medical disclaimer
This content is for educational purposes only. It is not medical advice and does not diagnose, treat, or prevent any condition. Reference ranges vary between laboratories — always use the range printed on your report and discuss your results with a healthcare professional.
See your own values in context
Bllod turns your lab report PDFs into clear, tracked results — every marker organized, explained, and charted over time.