In general, hemoglobin 149g/L is within the normal range. Normal values for hemoglobin are 110 to 150g/L for women; 120 to 160g/L for men; and 170 to 200g/L for newborns. Hemoglobin abnormalities are as follows: 1. Physiological increase: seen in highland residents, fetuses and newborns; 2. Pathological increase: seen in tetralogy of Fallot, cyanotic congenital heart disease, obstructive emphysema, pulmonary heart disease, etc.; also seen in certain tumors or renal diseases, such as renal carcinoma, pyelonephrosis, polycystic kidney, etc. 3. Physiological decrease: children from 3 months old to 15 years old, middle and late pregnancy and the elderly; 4. Pathological decrease: seen in various kinds of anemia and leukemia and other diseases. It is recommended that patients with abnormal hemoglobin indexes should go to the hospital in time, complete the relevant examinations and receive standardized treatment under the guidance of the doctor.