If myocardial infarction progresses, complications such as heart failure and pulmonary edema may occur, which may cause coughing symptoms, depending on the severity of the disease. Myocardial infarction is a myocardial ischemic-ischemic disease, the main common symptoms are pressure pain in the precordial area or behind the sternum, dyspnea, sweating, shock, etc. If the disease progresses, complications such as heart failure and arrhythmia may occur. Heart function decreases in heart failure, and pulmonary edema tends to occur, at which time respiratory symptoms such as coughing may occur. When the symptoms of myocardial infarction need timely treatment to avoid life-threatening situations, timely symptomatic treatment to avoid complications.