Sinus rhythm non-specific T-wave abnormalities are mainly seen in the following clinical situations: 1, some normal people can show such performance when they stay up late, anxiety, over fatigue, this situation is common in young women, there are no uncomfortable symptoms, check heart ultrasound and troponin is also generally normal, pay attention to regular work and rest, appropriate exercise. 2, patients with insufficient blood supply to the heart of coronary heart disease. Such patients may have previous risk factors for coronary heart disease, such as high blood lipids, high blood sugar, high blood pressure, obesity and smoking, etc. When symptoms of coronary heart disease such as chest pain, chest tightness and panic appear, such non-specific T wave abnormalities appear, and when symptoms of coronary heart disease disappear, such ECG changes sometimes return to normal, this situation suggests active myocardial ischemia, and should be treated according to the coronary heart disease The requirement for standardized treatment should be in accordance with coronary artery disease.