Widening of the ascending aorta may be related to hypertension, aortic atherosclerosis, blood viscosity and other factors. Generally, widening of the ascending aorta will cause symptoms such as chest tightness and shortness of breath, dyspnea, loss of appetite and transient blurred vision. 1. Hypertension: Due to the increase of the patient’s peripheral vascular resistance, the ascending aorta gradually widens due to the increase of blood pressure. Common symptoms include dizziness, fatigue and dyspnea. 2. Aortic atherosclerosis: due to the large amount of cholesterol, fat and other substances in the patient’s aorta, the formation of atheromatous plaques gathered in the arterial wall, resulting in thickening of the vascular wall, hyperplasia caused by the gradual widening of the ascending aorta. Common symptoms include chest tightness and shortness of breath, pain in the precordial region, etc. 3. Thickening of blood: When there is too much residual sugar and fat in the body, the blood will be too viscous and slow down the flow rate, causing the gradual widening of the ascending aorta. Common symptoms include enlarged liver and transient blurred vision. Ascending aortic widening is harmful to the human body, patients are advised to pay attention to dietary regulation, control blood pressure and go to the hospital regularly for follow-up.