Myocarditis is an inflammatory disease of the myocardium, the most common cause of which is a viral infection, and the early presence of symptoms is not limited to eight because of individual variability. Clinical symptoms of myocarditis vary and are usually less severe on self-induced symptoms than those seen on examination. Most patients have prodromal symptoms of viral infection 1-3 weeks prior to the onset of the disease, manifesting as fever, fatigue, malaise with muscle aches, and gastrointestinal symptoms such as nausea and vomiting. During acute onset, there may be excessive sweating, pallor, dizziness, shortness of breath, chest tightness, chest pain, palpitations, and abnormal heart sounds. The onset of myocarditis is variable and may be completely asymptomatic in mild cases, or cardiogenic shock and sudden death may occur in severe cases. Viral myocarditis is mostly self-limiting and some patients can heal on their own, but some patients may develop dilated cardiomyopathy. Therefore, it is recommended that patients go to the hospital for timely examination, such as chest X-ray, echocardiogram or MRI, to identify the cause of the disease and facilitate treatment. Maintain a regular routine, exercise, eat a balanced diet, and enhance physical fitness. Pay attention to personal protection to avoid colds and flu, chronic pharyngitis, tonsillitis, etc., which can play a role in preventing myocarditis.