Widening of the aortic arch is an imaging display, which alone cannot confirm the diagnosis of any disease, but must be related to the disease. Widening of the aortic arch is caused by aortic sclerosis, hypertension, and coronary heart disease. Arteriosclerosis or coronary artery disease will lead to poor vascular elasticity and narrowing of the lumen, and the narrowing of blood vessels will lead to insufficient blood supply to the heart muscle, and the body will compensate by widening the arteries to improve blood supply. Hypertension is also the most likely to damage blood vessels, which can be seen clinically as dizziness, weakness, chest tightness, pain, and weakened posterior carotid artery pulsation. The widening of the aortic arch itself is not harmful to the human body, so no special treatment is needed, and symptomatic treatment according to clinical manifestations is sufficient. Usually low salt and low fat diet, more aerobic exercise, obese people should lose weight, not often strain and avoid staying up late. Monitor blood pressure and blood lipids frequently, if blood lipids are elevated, you can take simvastatin tablets or drink water with raw hawthorn.