What's the anemia indicator?

Anemia refers to low hemoglobin or red blood cell concentration in peripheral blood. Hemoglobin concentration in adult men is lower than 120g/L, and that in women is lower than 110g/L. Anemia can be diagnosed if it is 100g/L. Hemoglobin concentration>90g/L is mild anemia, 60~90g/L is moderate anemia, and 30~60g/L is severe anemia.