What this marker measures
MCH and MCHC are closely related. MCH is the total hemoglobin per cell; MCHC is the concentration relative to cell volume. Together they refine anemia classification.
High or low: what it can mean
High MCH
Higher MCH is often seen alongside a high MCV and may point to the same causes — low B12, low folate, or liver-related changes.
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Low MCH
A low MCH typically accompanies a low MCV and suggests each red blood cell contains less hemoglobin than normal, a hallmark of iron deficiency anemia.
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Frequently asked questions
What is MCH?
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MCH is the average amount of hemoglobin contained in a single red blood cell, measured in picograms.
What does MCH measure?
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MCH and MCHC are closely related. MCH is the total hemoglobin per cell; MCHC is the concentration relative to cell volume. Together they refine anemia classification.
What does high MCH mean?
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Higher MCH is often seen alongside a high MCV and may point to the same causes — low B12, low folate, or liver-related changes.
What does low MCH mean?
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A low MCH typically accompanies a low MCV and suggests each red blood cell contains less hemoglobin than normal, a hallmark of iron deficiency anemia.
Related biomarkers
Editorial note
LabTestly explains lab markers using plain-English educational content. Reference ranges may vary by laboratory and should be interpreted with a clinician.
Educational content · Editorially reviewed for clarity · Last updated
Common sources used for lab-test education
Not medical advice
This page is for general understanding only and does not replace medical advice from your clinician. Reference ranges can vary by laboratory, age, sex, pregnancy status, medications, and clinical context.