Whether ventricular enlargement will stay enlarged or not cannot be generalized, and the cause needs to be identified, along with prompt treatment given, in order to delay the enlargement of the heart. Enlargement of the left ventricle of the heart is usually diagnosed and determined by ultrasonography. In general, the left ventricle is <55 mm in men and <50 mm in women, and if it is larger than this range, left ventricular hypertrophy is diagnosed. Common causes of left ventricular hypertrophy include hypertensive organic heart disease, coronary artery disease, ischemic cardiomyopathy, dilated cardiomyopathy, and heart valve disease. In patients with enlarged left ventricle, there are other symptoms such as arrhythmias and clinical manifestations of heart failure. The diagnosis can be further confirmed by an electrocardiogram. If it is determined that the patient has an enlarged left ventricle, it can be controlled and treated with ACEI-like drugs or diuretics to slow down the enlargement of the heart. Since the indications, contraindications and adverse effects of different drugs are different, the doctor will choose the most appropriate drug for treatment according to the severity of the patient's condition and the therapeutic effect.