About Mean Corpuscular Hemoglobin
MCH (Mean Corpuscular Haemoglobin) measures the average amount of haemoglobin carried by each red blood cell, expressed in picograms. It closely mirrors MCV: low MCH (hypochromia) accompanies microcytic anaemias like iron deficiency, while high MCH (hyperchromia) is seen in macrocytic anaemias from B12 or folate deficiency. MCH is particularly useful in combination with MCV for classifying anaemia and monitoring the response to iron or vitamin replacement therapy.