If the ECG shows myocardial ischemia, the patient is definitely not normal. An ECG showing myocardial ischemia does not mean that the patient has a myocardial ischemic related disease. If the ECG shows myocardial ischemia, you should go to the relevant hospital for active examination to look for any related diseases. The most common cause of myocardial ischemia on ECG is myocardial hypertrophy caused by coronary artery disease and hypertension; hypertrophic cardiomyopathy and heart enlargement can also cause the ECG manifestation of myocardial ischemia. In individual patients, although the ECG shows myocardial ischemia, but no relevant disease is found after relevant examination, the presence of non-specific changes in the ECG is considered, and such patients can be followed up regularly. For patients with confirmed ECG myocardial ischemia and underlying disease found, the underlying disease should be treated actively.