Lower limit of normal hemoglobin values at various ages neonate Hb 145 g/L 1~4m Hb 90 g/L 4~6m Hb 100 g/L 6m~6y Hb 110 g/L 6y~14y Hb 120 g/L Degree of anemia Mild Moderate Severe Extremely severe ~90g/L ~60g/L 30g/L <30g/L Neonate ~120 g/L ~90g/L ~60g/L <60g/L Lower limit of normal hemoglobin values at various ages neonate Hb  145 g/L  1 ~ 4m Hb  90 g/L  4 ~ 6m Hb  100 g/L 6m ~ 6y Hb  110 g/L 6y ~ 14y Hb  120 g/L Degree of anemia Mild Moderate Severe Extremely severe ~90 g/L ~60 g/L ~30 g/L  30 g/L Neonate ~120 g/L ~90 g/L ~60 g/L  60 g/L