The sides of the chest exhibit vague pain, and an electrocardiogram should be performed promptly. Because patients with myocardial ischemia will show chest pain and atypical symptoms, they will also show a stuffy feeling in the chest. The electrocardiogram can reveal obvious ST-segment changes, and the patient’s symptoms can improve with timely administration of coronary vasodilator drugs. In addition, patients with pulmonary nodular disease should undergo a chest CT examination, which will reveal multiple nodular changes in both lungs, and the patient will also exhibit chest pain, which will worsen with activity. For patients with mixed density nodules or changes in the burr sign, as well as gradual increase in size within a short period of time, surgical treatment, i.e. removal of the nodules and histological examination of the lungs, is required if necessary. Physical activity and exercise are recommended.