MCH

Complete Blood CountBlood HealthBlood

MCH measures the average amount of hemoglobin in each red blood cell.

Why it matters: It helps identify anemia and what is likely causing it, particularly alongside the other red blood cell measurements.

Source · Cleveland Clinic — what it is, why it matters, what moves it, related conditions

Reference Range
27.0 – 34.0pg
27
34LowNormalHigh
What Moves It

May increase with:

Long-term alcohol use disorder
Thyroid problems
Too little folate or vitamin B12

May decrease with:

Iron deficiency, often from blood loss
Thalassemia
Sickle cell anemia
Chronic inflammation from infection, kidney disease, liver disease or cancer
Associated Conditions
Hypochromic anaemia, which a low result may indicateMicrocytic anaemia, which a low result may indicateMacrocytic anaemia, which a high result may indicate
Related Markers
MCVMCHCHemoglobin
Common questions

What is MCH?

MCH measures the average amount of hemoglobin in each red blood cell.

What might a high or low MCH mean?

It helps identify anemia and what is likely causing it, particularly alongside the other red blood cell measurements.

What is the typical reference range for MCH?

The general-population reference range shown here is 27 – 34 pg. Reference ranges describe the general population and are not a personal target — discuss your results with your physician.

What can affect MCH?

It may be higher with: Long-term alcohol use disorder, Thyroid problems, Too little folate or vitamin B12. It may be lower with: Iron deficiency, often from blood loss, Thalassemia, Sickle cell anemia, Chronic inflammation from infection, kidney disease, liver disease or cancer.

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