A low Mean Corpuscular Hemoglobin (MCH) value generally points to iron deficiency anemia.
Understanding MCH
MCH, or Mean Corpuscular Hemoglobin, measures the average amount of hemoglobin within each red blood cell. Hemoglobin is the protein in red blood cells that carries oxygen. MCH is calculated as part of a complete blood count (CBC).
Causes and Implications of Low MCH
A low MCH level, also known as hypochromia, suggests that red blood cells are smaller than normal or contain less hemoglobin than normal. This can lead to various health concerns.
- Iron Deficiency Anemia: This is the most common cause of low MCH. Iron is essential for hemoglobin production. Without enough iron, the body can't produce enough hemoglobin, leading to smaller, paler red blood cells.
Symptoms Associated with Low MCH
Symptoms can vary, but common signs of low MCH due to iron deficiency anemia include:
- Fatigue
- Weakness
- Pale skin
- Shortness of breath
- Dizziness
- Headaches
Diagnosis and Treatment
A doctor will review your medical history, perform a physical exam, and analyze your CBC results to determine the cause of low MCH.
- Treatment: Treatment typically involves addressing the underlying cause. For iron deficiency anemia, iron supplements are often prescribed. Dietary changes to include more iron-rich foods may also be recommended. In some cases, further testing may be needed to identify the cause of the iron deficiency.
