Anemia means low red blood count. It is important to know that anemia can be due to several causes and not only due to lack of iron. Some of the causes of anemia include blood loss, lack of nutrients, destruction of red blood cells and involvement of bone marrow which is the factory that makes blood.

Work up for finding the cause of anemia may include blood tests and possibly a bone marrow test.
Most of the causes of anemia that do not include bone marrow disorder are easily treatable.
It is important to see a hematologist  for their work up and treatment of anemia that does not improve on its own or keeps on getting worse