Iron deficiency anemia can lead to myocardial ischemia. Iron is an important raw material for the synthesis of red blood cells, and iron deficiency will lead to a decrease in the synthesis of red blood cells, which will eventually lead to anemia. Mild anemia has a relatively small impact on the human body, if severe anemia occurs, the content of red blood cells and hemoglobin within the blood will be significantly reduced, the ability of the blood blood oxygen will be significantly reduced, and the symptoms of myocardial ischemia will occur. Anemia resulting in myocardial ischemia can also cause symptoms of chest tightness and shortness of breath, and the treatment should give the patient iron supplements. Patients with severe anemia can also be treated with a short-term blood transfusion to quickly boost hemoglobin and improve the patient’s symptoms. Iron deficiency caused by myocardial ischemia to treat the primary disease, the symptoms are obvious to go to the hospital, under the guidance of hematologists for treatment.