simple terms means low Blood Hemoglobin. Hemoglobin within Red Blood Cells(RBCs) is responsible for carrying oxygen to the various body organs. In general if you have low hemoglobin you will look pale, feel tired easily, you may feel breathless or fatigued easily and many other symptoms. Also you are predisposed to getting frequent infections
The few common test for anemia are :
--Complete blood count : for finding out your Hemoglobin levels
--Retic count: for finding out your bone marrow status(Bone marrow produces blood cells)
--Iron studies: to rule out Iron deficiency common cause of anemia
--Vit. B12 and Folic Acid tests: to look for nutritional deficiency causing anemia
--Hemoglobin Variants or Hb Electrophoresis test: to look for hemoglobin defect like Thalassemia.
--Stool routine examination: to look for occult blood and parasites in stool.
The recommended test for anemia called Anemia profile covers all the above mentioned tests.