Heart pain during fever is a series of clinical manifestations of myocardial damage due to bacterial or viral infections involving the heart muscle. In addition to heart pain, patients may also experience palpitations, dyspnea, and in severe cases, syncope. The patient may be treated with anti-inflammatory or antiviral therapy, as well as drugs that nourish the myocardium and promote myocardial metabolism, while also paying attention to the prevention of fulminant myocarditis and severe myocarditis, so heart pain during fever is a clinical manifestation of myocarditis.