MCH (Mean Corpuscular Haemoglobin)

Average haemoglobin content per red blood cell.

What it is

MCH is the average amount of haemoglobin per red blood cell. It largely parallels MCV — low MCH occurs with iron deficiency and microcytic anaemia; high MCH with macrocytic states.

Why it matters

MCH provides confirmatory information alongside MCV when characterising the type of anaemia. Clinically, it rarely changes interpretation but adds precision.

How to test

Full blood count (calculated value).

This information is for educational purposes only. Always discuss testing and interpretation of results with your care team.

Optimal range

27–33 pg.

How often

Each blood count panel.