In contrast to CRP and leukocyte count, which showed only slight elevations in our study cohort, NLR and MLR were markedly increased in patients with myocarditis (NLR: median 2.48 (IQR 1.55–4.58), normal value approx.: 1.77 ± 0.5832,33; MLR: median 0.42 (IQR 0.39–0.58), normal value approx.: 0.17 ± 0.0532). This evidence concerns the gene CRP and myocarditis.