For the normal value of hemoglobin, the normal range is 120-160g/L for men and 110-150g/L for women, with standards varying slightly from hospital to hospital. Blood routine can help to clarify the blood level in the patient’s body, and based on the blood level, it can determine whether there is anemia or not, and it can also find out whether there is a significant increase in hemoglobin. When the patient is anemic, there will be obvious weakness, palpitations, panic, chest tightness and other discomforts. The level of hemoglobin drop can determine the degree of anemia, such as mild, moderate, severe, and the cause of anemia has various aspects, such as malnutrition, blood loss, and suffering from blood system diseases. Increased hemoglobin levels are mostly secondary factors, more common in men, such as relative hypoxia triggered by snoring during sleep, which can lead to increased hemoglobin levels, and bone marrow proliferation, which can lead to increased hemoglobin levels.