Hematology is the branch of medicine that studies blood, blood-forming organs, and blood diseases. Doctors who specialize in this field are called hematologists.
From Greek “haima” or “haima-” meaning “blood,” and “-logy” from “logia” meaning “study of.” So “hematology” literally means “the study of blood.”
Your blood is like a moving laboratory that reveals secrets about your entire body—oxygen levels, infections, nutrition, even some cancers. Hematologists can often guess what’s going wrong in your body just by how your blood cells look and behave. It’s like reading a detailed health report that never stops updating.
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