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There are more than 400 types of anemia. These types of anemia are divided into three main groups, according to their cause. There is anemia caused by blood loss, by decreased or faulty red blood cell production, and by destruction of red blood cells.
Yes. Iron-deficiency anemia is just one type of anemia. Other types of anemia are caused by: 1  Diets lacking in vitamin B12 (or, the body is unable to use, or absorb B12). 2  Diets lacking in folic acid (or, the body is unable to use folic acid). 3  Inherited blood disorders.