The hemoglobin concentration in routine blood tests is abbreviated as HGB in g/L. This indicator indicates anemia, which is diagnosed according to the amount of hemoglobin in the body, and the normal range of values varies by age and gender. Anemia is diagnosed in pregnant women with HGB <110g/L, in children younger than 6 years old with HGB <110g/L, and in children 6-14 years old with HGB <120g/L.