In healthy adults, hemoglobin 169 usually does not require medication, but if it is due to a primary disease (e.g., infection, myeloproliferative tumor, etc.), the primary disease should be treated aggressively. Normal hemoglobin ranges from 120 to 160 g/L in adult males and 110 to 150 g/L in adult females, usually due to the following reasons. 1. Concentration of the blood: drinking too little water, a lot of exercise, fever, vomiting, diarrhea and other reasons lead to the reduction of water in the blood, blood concentration, which will lead to an increase in the concentration of hemoglobin, should be supplemented with water, no need to take medication. 2. Excessive erythropoiesis: commonly found in residents of high altitude areas, as the oxygen content of the air is lower in high altitude areas, the body compensates by generating more hemoglobin to assist in the transportation of oxygen. Similarly, some chronic hypoxic diseases (chronic obstructive pulmonary disease), etc., can also be compensated to lead to increased erythropoiesis and increased hemoglobin. 3. Other systemic diseases: such as erythrocytosis (neoplastic), myeloproliferative tumors, renal cancer, hepatocellular carcinoma and so on can lead to erythrocytosis. The diagnosis and treatment of primary diseases should be actively carried out. Mild elevation of hemoglobin is generally caused by physiological reasons, and blood routine can be rechecked after general adjustment. For pathological elevation, diagnosis and treatment should be carried out under the guidance of physicians to avoid delaying the condition.