Blood Basics

What causes large red blood cells?

A Answers (1)

  • Macrocytosis is the term used to describe red blood cells that are larger than normal. Macrocytosis is not an actual disease but it may indicate there is an underlying problem such as: Vitamin B-12 deficiency; Folate deficiency; Liver disease; Alcoholism; or increased blood cell production in the bone marrow.
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