Cardiovascular department has cardiovascular surgery and cardiovascular medicine, can see a lot of diseases or diseases, there are heart structure and function abnormalities disease, coronary artery disease, arrhythmia, other diseases and so on. 1. Diseases of abnormal heart structure and function: such as heart valve disease, including aortic valve, mitral valve and other valves have structural and functional abnormalities, stenosis or insufficient closure, which will lead to abnormal heart structure and function. It also includes dilated cardiomyopathy, congenital heart disease, hypertensive heart disease and so on, all of which are diseases with abnormal heart structure and function. 2. Coronary artery disease: in most cases, it refers to coronary atherosclerotic heart disease. Due to coronary atherosclerosis, the lumen is narrowed or occluded, which leads to myocardial ischemia, and indicates symptoms such as chest tightness, chest pain, and tightness in the chest. 3. Arrhythmia: there are slow arrhythmia and tachyarrhythmia. Slow arrhythmias include atrioventricular block and sick sinus node syndrome. Tachyarrhythmias include atrial, paroxysmal, supraventricular, ventricular tachycardia, atrial fibrillation, atrial flutter, and frequent atrial premature beats. 4. Other diseases: including pericardial disease, infective endocarditis, aortic disease, and peripheral vascular disease. If there is any discomfort, it is recommended to consult a doctor in time and standardize the treatment under the doctor’s guidance.