Mchc
Mean corpuscular hemoglobin concentration — how concentrated hemoglobin is within red blood cells.
Typical reference range
| Range | Unit |
|---|---|
| 320–355 | g/l |
What Mchc measures
MCHC (mean corpuscular hemoglobin concentration) is the average concentration of hemoglobin inside your red blood cells, describing how densely each cell is packed with the oxygen-carrying protein. It is one of the red-cell indices reported on a complete blood count (CBC), and it is typically calculated from your hemoglobin and hematocrit rather than measured directly.
- MCHC reflects hemoglobin concentration per unit of red-cell volume, not the total amount in each cell.
- It is read together with MCV (average red-cell size) and MCH (average hemoglobin content per cell).
Clinicians use these indices as a group to characterize patterns of anemia and to guide which further tests, such as iron studies or a blood film, might be helpful.
What a high Mchc can mean
A high MCHC is uncommon, because there is a practical upper limit to how much hemoglobin a red blood cell can hold. When it does appear, it often points toward conditions in which red cells are more spherical and compact rather than the usual disc shape.
- Hereditary spherocytosis and some other membrane disorders can raise MCHC because the cells are denser.
- Laboratory artifacts such as clumping, lipemia, or cold agglutinins can falsely elevate the calculated value.
Because a genuinely high result is unusual, it is often flagged for review and checked against the blood film and the other red-cell indices. Your clinician interprets any elevated MCHC in the context of your full CBC, symptoms, and history rather than treating it in isolation.
What a low Mchc can mean
A low MCHC, sometimes described as hypochromia, means your red blood cells carry relatively less hemoglobin and therefore appear paler than usual. It is more common than a high value and frequently accompanies red cells that are also smaller than normal.
- It is classically associated with iron deficiency, where the body lacks the iron needed to build hemoglobin.
- Some other microcytic anemias, including certain inherited hemoglobin conditions, can also lower MCHC.
A low MCHC is most meaningful when read alongside MCV, MCH, hemoglobin, and iron studies, which together help distinguish the underlying cause. Interpretation and any next steps should be discussed with a clinician who can consider your overall picture.
Track your Mchc over time in Quanome — it reads your lab reports (PDF or photo) on your device, charts each marker against its range, and an AI coach explains what your trends mean alongside your Apple Health and DNA.