Cough is a clinical symptom that does not cause myocarditis, if the cough is caused by respiratory infectious diseases, it may cause myocarditis. First of all, cough is a relatively common clinical symptom of the respiratory system, many diseases can cause cough, such as bronchial asthma, heart failure, lung tumors, tuberculosis, pneumonia, pharyngeal lesions, etc. Excessive coughing may aggravate the fatigue of the respiratory muscles and diaphragm or pharyngeal congestion and edema, and does not cause myocarditis. If the patient’s cough is caused by respiratory pathogen infection, such as viruses, bacteria, fungi, spirochetes, rickettsiae and other pathogens, the pathogens directly act or work with the body’s immune response to damage the myocardium, which may cause myocarditis. When the patient has a cough, he should go to the hospital in a timely manner to clarify the cause of the cough, and carry out targeted treatment according to the cause.