Possible features of a bad heart include palpitations, different degrees of dyspnea, chest pain, and circulatory stasis. 1. Palpitation: palpitation refers to the patient’s self-consciousness of heart discomfort or panic, many diseases can cause palpitation symptoms, such as heart failure, certain arrhythmias, ventricular hypertrophy caused by various reasons, acute myocardial infarction precursor period, and so on. 2. Different degree of dyspnea: different degree of dyspnea is a typical manifestation of heart failure, according to the severity of the disease can be exertional dyspnea, nocturnal paroxysmal dyspnea, sitting breathing, cardiogenic asthma and so on. 3. Chest pain: Chest pain, especially exertional or frequent chest pain, is a typical symptom of many heart diseases, such as coronary heart disease, myocarditis, acute pericarditis, severe aortic stenosis and so on. 4. Circulatory stasis: A series of circulatory stasis manifestations will occur in right heart failure, such as lower extremity edema, jugular venous angiosis, liver enlargement, abdominal distension, etc. The above manifestations suggest that the patient may be suffering from heart disease. The appearance of the above symptoms suggests that the patient may be suffering from heart disease, and it is recommended that the patient go to the hospital as soon as possible, so that the diagnosis can be clarified in time, and the patient can be treated accordingly.