Myopericarditis is an illness with normally favorable prognosis and mostly seen in young adults. It is known that myopericarditis can be recurrent. However, it cannot be clarified why it is recurrent. We are presenting two cases including a 16-year-old and a 17-year-old patients gone through myopericarditis for 3 times. We did a detailed research to introduce etiological reasons in two patients. We studied infectious reasons, autoimmune diseases, immunological and rheumatic diseases including mainly viral pathogens. During the myopericarditis attacks of patients, no pathological finding was identified other than being monocytosis in full blood counts, moderate sedimentation, CRP increase and raised troponin in laboratory data. We determined all viral pathogens known as agent as negative in both patients of ours. We think that patients particularly with more than one recurrent myopericarditis should be evaluated with a different perspective.