The st-t change of electrocardiogram should be referred to the cardiology department. ECG st-t change is a common description of ECG, often suggesting insufficient blood supply to the myocardium or myocardial ischemia, it is generally recommended to go to the cardiology department, under the guidance of the physician to improve the myocardial enzymes, ambulatory electrocardiogram, cardiac ultrasound and other tests, to determine the cause of the disease, and treat the cause. There are three kinds of ECG st-t changes, for example, st segment depression suggests that there may be myocardial ischemia, need to improve the relevant examination, if necessary, drug treatment; st segment arch back upward elevation suggests that acute myocardial infarction, clear diagnosis and early thrombolytic or interventional therapy; st-t non-specific change suggests that there may be premature repolarization syndrome, generally do not need special treatment. If you have chest pain, chest tightness and ECG abnormalities, it is recommended to go to the hospital for further consultation and timely treatment to avoid delaying the condition.