Understanding MCHC: Normal vs Optimal Ranges

?What is MCHC?

MCHC (mean corpuscular haemoglobin concentration) measures the average concentration of haemoglobin within red blood cells. It is calculated as haemoglobin divided by haematocrit. Low MCHC (hypochromic) indicates iron deficiency; high MCHC can suggest hereditary spherocytosis.

!Why It Matters

MCHC below 31 g/dL is a sensitive indicator of iron-deficiency anaemia. It often falls before haemoglobin drops significantly. Very high MCHC may indicate hereditary spherocytosis — a condition where red cells are abnormally shaped and prone to destruction.

Reference Ranges

Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.

Symptoms of Imbalance

• No direct symptoms from MCHC abnormality — symptoms come from associated conditions

How to Improve Your Levels

• 1Low MCHC: treat iron deficiency with iron-rich foods (plus vitamin C) or supplements
• 2Rule out thalassemia trait when MCHC and MCV are both low without clear iron deficiency
• 3High MCHC: investigate hereditary spherocytosis or autoimmune haemolysis
• 4Confirm the cause with ferritin and a peripheral blood film before treating
• 5Re-test after correcting any deficiency to confirm normalisation

When to Test

Part of complete blood count.

Related Biomarkers