Is a cold a minor illness? The common cold can be fatal! The most serious consequence of the common cold – explosive myocarditis Cold is an easy and common thing for ordinary people, generally 2-3 times a year per capita, strong body, strong immune people, the number of colds less; weak people, especially children have more colds. But some people say that “cold is actually a way to improve the immunity of the human body”, although there is no conclusive evidence, but I have heard many patients with malignant tumors say: “I am in good health, I have not even had a cold, or I rarely get a cold, and I never go to the hospital, but I did not expect to get this disease. I have never had a cold, or I seldom get a cold and never go to the hospital. So everything can not be absolute, occasionally a cold is not necessarily a bad thing. What is viral myocarditis? Viral myocarditis is an inflammation of the myocardium caused by viral infection, and its clinical manifestations vary from asymptomatic local inflammation of the myocardium to severe myocarditis caused by diffuse inflammation of the myocardium, with acute severe heart failure, severe arrhythmias and even cardiac arrest and cardiogenic shock. In general, viral myocarditis mostly presents with symptoms of cardiac discomfort 1-2 weeks after a cold, while fulminant myocarditis mostly presents with severe cardiac symptoms 2-3 days after a cold, and in many cases in highly resistant adolescents and strong men. Moreover, the manifestations of myocarditis have a lot of obscurity, which can lead to missed diagnosis, delayed diagnosis or misdiagnosis even if the patient is seen in the hospital.