MCH
MCH measures the average amount of hemoglobin in each red blood cell. It is closely related to MCV.
Category: Complete Blood Count
Also known as: mch, mean corpuscular hemoglobin
Reference range: 27–33 pg (Source: ABIM)
Standard unit: pg
High values may indicate
High MCH is often seen with macrocytic anemias caused by vitamin B12 or folate deficiency.
Low values may indicate
Low MCH is often seen with iron deficiency anemia or thalassemia.
Frequently asked questions
- What is a normal MCH level?
- A typical reference range for MCH is 27–33 pg (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is MCH measured in?
- MCH is most commonly reported in pg. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do MCH reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track MCH over time?
- Yes. Upload results from any lab and BloodId charts your MCH over time against its reference range, so you can see whether the trend is rising, falling, or stable.