The classification of anemia severity is mostly based on hemoglobin concentration and is divided into mild, moderate, severe and very severe.
It is generally believed that adult men are diagnosed as mild anemia if their hemoglobin is less than 120g/L and greater than 90g/L; moderate anemia if their hemoglobin is less than 90g/L and greater than 60g/L; severe anemia if their hemoglobin is less than 60g/L and greater than 30g/L; and very severe anemia if their hemoglobin is less than 30g/L.
It is generally accepted that adult women with hemoglobin less than 110g/L and pregnant women with hemoglobin less than 100g/L are defined as anemic; if hemoglobin is less than 90g/L and greater than 60g/L the diagnosis is moderate anemia; if hemoglobin is less than 60g/L and greater than 30g/L the diagnosis is severe anemia; if hemoglobin is less than 30g/L the diagnosis is very severe anemia.
For children, less than 110g/L for children aged 6 months to 6 years; less than 120g/L for children aged 6 to 14 years was defined as anemia. Mild, moderate, severe and very severe are graded as above.
If anemia occurs, you should be admitted to the hospital to clarify the cause and degree of anemia, and be treated under the guidance of a doctor.