In the cardio-rheumatology department of the Samarkand Regional Multidisciplinary Children's Clinical Center, we studied clinical and electrocardiographic analysis of 50 young patients with non-rheumatic myocarditis in the last 2020-2021. 86% of young children with a history of acute respiratory infection. Of the clinical symptoms of non-rheumatic myocarditis, general weakness was 88%, profuse sweating was 86%, cough was 50%, redness of the lips and nose was 58%, and white marble skin was 76%. Heart tones were observed in all patients. "gallop rhythm" was 32%.