Generally, if pathological Q waves appear on the ECG, they are seen in two conditions: the first, coronary atherosclerotic heart disease, which has the most serious complication of myocardial infarction, and generally after myocardial infarction, the heart is in the recovery phase, which is manifested on the ECG as having pathological Q waves. Another kind can be seen in myocarditis, which usually has a legacy of pathological Q waves on the ECG. A small number of cardiomyopathies may also have pathological Q waves, which need to be further differentiated by cardiac ultrasound. If the diagnosis is coronary artery disease, medication or stent implantation or even bypass treatment will be required. If it is a case of myocarditis, you need to nourish the heart muscle, anti-inflammatory treatment, in addition to pay attention to rest and avoid sports.