Anemia is defined as the amount of hemoglobin (Hb), red blood cells, and hematocrit per unit volume of peripheral blood is lower than the reference value. The following are some daily precautions: 1. You should cooperate with your doctor to carefully examine the cause of the disease and prescribe the right medication, and do not take blood supplements by yourself. Don’t take “blood tonic” by yourself. 2. Do not be partial to food, and pay attention to eating iron and folic acid-rich foods, such as green vegetables, eggs, meat, fish and fruits. 3, the growth and development of children and women during pregnancy, lactation hematopoietic material needs, should strengthen nutrition, such as food supplementation is not enough, can be under the guidance of doctors oral iron and folic acid. 4. Women with excessive menstrual flow should also take iron supplements in a timely manner. They should find out whether they have gynecological diseases, cure gynecological diseases first and plug the bleeding loophole so that the anemia can be restored. Patients with hemorrhoids or hookworm disease should be treated promptly, otherwise long-term chronic bleeding will also lead to iron deficiency anemia. 5.Patients after gastric and small intestine surgery and those with chronic gastritis and reduced gastric acid will cause lack of hematopoietic raw materials, so attention should be paid to the examination, and if anemia is found, it should be treated actively. 6.Anaemia in elderly people must go to hospital to find out the cause to prevent missing tumor diseases.