In addition to one of the most basic blood tests for anemia, there are also three tests for anemia, which are tests for folate levels, vitamin B12 levels and ferritin levels. The results of these tests can help diagnose the cause of the disease. 1. Folic acid level: below normal, usually consider megaloblastic anemia. 2. Vitamin B12 level: below normal, megaloblastic anemia is also considered. 3. Ferritin levels: below normal, iron deficiency anemia may be considered; if above normal, iron granulocytic anemia may be seen. If anemia is suspected or there are symptoms such as dizziness, weakness, pallor, etc., it is recommended to consult the hospital in time, improve the examination and carry out standardized treatment under the guidance of the doctor.