Myocarditis is caused by colds, cold or certain viral infections. Patients may experience heart symptoms such as panic, palpitations, chest tightness, shortness of breath, chest pain and sweating. Confirming this disease is still difficult for some hospitals, because the diagnosis depends on the biopsy of the endomyocardium, which is generally judged from clinical experience. If CK-MB is elevated with obvious cardiac symptoms, combined with the patient’s medical history, such as a history of the flu, suggests that it may be myocarditis. The main treatment is a combination of antiviral drugs and drugs that improve myocardial metabolism and nourish the heart muscle. In terms of prevention, it is to avoid exertion, cold and flu, including normal study, do not give yourself too much pressure, do not be particularly nervous, to ensure a good mood.