Early stage of lymphoma usually does not cause changes of cardiac enzymes. Elevated cardiac enzymes are the manifestation of myocardial damage, but early stage of lymphoma usually does not affect the heart, so it will not cause changes of cardiac enzymes; there are no conscious symptoms in its early stage, and with the development of the disease, patients may have painless lymph node enlargement, fever, emaciation, night sweating and other symptoms, and cardiac enzymes may be elevated in the case of myocardial damage in the late stage. Patients with damaged heart muscle often show panic, chest pain, chest tightness, dyspnea, etc. If there are these symptoms, they should do ECG, cardiac enzymes, cardiac ultrasound and other examinations. Patients with early stage of lymphoma should actively consult the doctor, improve the examination, and standardize the treatment under the guidance of professional physicians to avoid delaying the condition.