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Mean corpuscular hemoglobin (MCH)

The average amount of hemoglobin inside each red blood cell. It usually moves in the same direction as MCV.

What it measures

MCH weighs the hemoglobin in an average red cell, in picograms. Big cells tend to hold more hemoglobin, so MCH and MCV rise and fall together. When they disagree, it is worth a second look at the sample.

Why it is on the panel

It adds a check on the size indices. In iron deficiency, cells are both smaller and poorer in hemoglobin, so MCH falls along with MCV and MCHC.

How to read it

Treat MCH as a companion to MCV and MCHC. A low trio supports iron deficiency. An isolated odd MCH, with the others typical, is more often a lab quirk than a new disease.

When it runs higher

A high MCH tracks large red cells. The same conditions that raise MCV — B12 or folate deficiency, alcohol, liver disease, thyroid disease — tend to raise MCH.

When it runs lower

A low MCH means each cell is light on hemoglobin. Iron deficiency is the common reason. It is read with ferritin-style context when you have it, and on this panel with the iron and UIBC results.

How to use this page

This page explains what the measurement is for. It is educational. Your Healiam report includes the reference interval for your age and sex, and a clinician reads that result with your history, medicines, and the rest of the panel. Talk with a clinician before changing diet, supplements, or treatment because of a number on a report.

MCH

MCH is part of the full panel.
No referral or insurance required.

One preventive draw covers this measurement and the rest of the Healiam panel. CLIA-certified results come back in days.