Cardiovascular disease does not have uniform symptoms, cardiovascular disease has a variety of different diseases with different symptoms, such as heart failure symptoms of dyspnea, cough, fatigue, oliguria, etc.; myocardial infarction symptoms of chest tightness, chest pain, palpitations, etc.; serious arrhythmia can have dizziness, palpitations, angina and other symptoms. 1. Heart failure: generally take dyspnea as the main symptom, may be accompanied by cough, cough sputum, cough pink foamy sputum in acute left heart failure attack, fatigue, reduced activity tolerance, double lower extremity edema, oliguria and other symptoms. 2. Myocardial infarction: chest pain, often occurring in quiet time, may be accompanied by fever, tachycardia, nausea, vomiting, epigastric discomfort and other gastrointestinal symptoms, a variety of arrhythmias (ventricular arrhythmia is the most common), hypotension and even shock. 3. Arrhythmia: mild arrhythmia can have no obvious symptoms, but in severe cases, there will be dizziness, palpitations, fatigue, angina pectoris or even fainting and other organs with insufficient blood supply. The above situation is part of the performance of cardiovascular disease, such as in case of maladjustment timely consultation, under the guidance of the doctor for relevant examinations and treatment.