Mean Corpuscular Haemoglobin (MCH)

Mean Corpuscular Haemoglobin (MCH) is the average amount of hemoglobin in a person’s red cells. Normal MCH levels are around 27 to 33 picograms (pg) per cell in adults.

Causes of high MCH:

Macrocytic anaemia such as

  • Megaloblstic anaemia
  • Non-megaloblastic anaemia
  • Liver disease
  • Haemolytic anaemia
  • Alcoholism
  • Myelodysplastic syndrome
  • hypothyroidism

Causes of low MCH:

Microcytic hypochromic anaemia –such as

  • Iron deficiency anaemia.
  • Thalassaemias
  • Sideroblastic anaemia
  • Anaemia of chronic disease