The most common type of myocarditis clinically seen is viral myocarditis, which is a localized or diffuse cardiac injury resulting from viral infections. Mild myocardial damage, when treated effectively under the guidance of a doctor, typically does not recur after recovery. Recurrence referred to involves serious myocardial damage, or lack of systematic treatment, leading to complications such as heart failure and arrhythmias. These complications often exacerbate under certain triggering factors like infections, colds, excessive fatigue, emotional excitement, overeating, constipation, etc., increasing the cardiac load and causing the recurrence of heart failure and arrhythmias.