Hemoglobin 72 refers to a hemoglobin level of 72 g/L in routine blood tests, which is a moderate state of anemia, and the need for blood transfusion is determined by the patient’s age and comorbidities. The criteria for anemia for adults are called anemia when the hemoglobin level is <120g/L for men, <110g/L for non-pregnant women, and is diagnosed when the hemoglobin level is <100g/L for pregnant women. Since the degree of anemia is related to the hemoglobin level, when the hemoglobin is between the low limit of normal and 90 g/L, it is called mild anemia, the range of hemoglobin for patients with moderate anemia is 90-61 g/L, while patients with severe anemia have hemoglobin of 60-31 g/L and patients with extreme anemia have hemoglobin <30 g/L, often combined with anemic heart disease, so a hemoglobin level of 72 g/L is Moderate anemia, but the minimum standard for blood transfusion may change depending on age and comorbidities. For elderly patients, when there is also insufficient myocardial blood supply, such as a history of coronary heart disease, myocardial ischemia, old infarction, cardiac insufficiency, angina pectoris, etc., it is necessary to ensure myocardial blood supply and the amount of hemoglobin required by the body is high, so for this group of people, a hemoglobin of 72g/L can be transfused to reduce the probability of myocardial ischemia. For people who need to undergo surgery with large trauma and blood loss, such as major gastrectomy, hysterectomy, etc., they need to ensure that their hemoglobin is above 100g/L. Such people also need blood transfusion when their hemoglobin is 72g/L. In addition, for people who do not have special comorbidities and only have a hemoglobin of 72g/L, blood transfusion is generally not necessary and iron can be taken as prescribed by the doctor. For example, ferrous sulfate tablets. Low hemoglobin can bring more symptoms, such as sleepiness, weakness, palpitations, etc. Therefore, in daily life, it is recommended to eat light, easy-to-digest food and iron-rich food, such as black sesame, black fungus, red dates, animal liver, etc., to help replenish the body's blood.