Left atrial enlargement and left ventricular wall thickening are the results of cardiac ultrasound, indicating that the left atrium of the heart is enlarged and the wall of the left ventricle is thickened, which is a manifestation of cardiac compensation, and it may be the manifestation of hypertension, rheumatic heart disease, heart failure and other diseases. 1. Hypertension: patients with high blood pressure due to increased arterial pressure in the circulation and increased resistance of small peripheral arteries, resulting in increased pressure load on the left heart, which can lead to an increase in the size of the left atrium and thickening of the left ventricular wall. 2. Rheumatic heart disease: patients with rheumatic heart disease are often accompanied by heart valve lesions, such as mitral valve insufficiency, due to mitral valve insufficiency can lead to increase the volume load of the heart, which will lead to the heart adaptive left atrial enlargement, left ventricular wall thickening performance. 3. Heart failure: heart failure caused by myocardial ischemia and hypoxia, severe anemia and other reasons can make the patient’s heart appear compensatory changes, and left atrial enlargement, left ventricular wall thickening performance. If the examination finds that the left atrium is enlarged and the left ventricular wall is thickened, please follow the doctor’s instructions to improve the relevant examination and treatment.