Traumatic myocardial contusion can be diagnosed by electrocardiogram, echocardiogram, chest x-ray and other examinations combined with corresponding clinical symptoms. 1. Electrocardiogram: ST-segment elevation, ST-segment depression, T-wave flattening or T-wave inversion may be present. Atrial premature beats, ventricular premature beats, atrial tachycardia, short bursts of ventricular tachycardia and other arrhythmias. 2. Echocardiography: It can show the structural and functional changes of the heart and find out whether there is a segmental weakening of the ventricular wall movement. 3. Chest x-ray: it can determine whether there is pericardial effusion and whether there is foreign body in the heart cavity. 4. Clinical symptoms: the main symptoms include shortness of breath, chest tightness, loss of appetite, dizziness, anxiety, fatigue and weakness. If the above symptoms of traumatic myocardial contusion occur, it is recommended to go to the hospital for examination in time, and if the diagnosis of traumatic myocardial contusion is confirmed, it should be treated actively.