What causes anemia?

Anemia is one of the most common blood conditions in the United States affecting 3.5 million people in any given year. Watch this video from Dr. Randy P. Martin to learn about the causes of anemia.

Iron-deficiency anemia is the most common type, but anemia can take several different forms.

Your age and diet play a role in developing it—but there are other anemia risk factors you should know about.

Anemia is prevalent among people with heart disease and is associated with worse outcomes.

Low iron can cause fatigue. Here's what to do if you think your tiredness is the result of iron-deficiency anemia.

Why red blood cells are so important, and how these cells are affected by sickle cell disease.