Prolonged aortic tortuosity is caused by congenital abnormal development of the aorta, aortic atherosclerosis and other causes, which can be detected by chest X-ray. If the aortic tortuosity is prolonged as soon as the X-ray is taken at birth, congenital developmental anomalies are considered, and at this time there may be no obvious symptoms or signs, and there is no obvious effect on the body. If there is no abnormality in the aorta in the previous examination, and the aortic tortuosity is prolonged after a year or a few years, the possibility of aortic atherosclerosis is considered to be high, and as we grow older, the hardening of the arterial blood vessels is a normal condition, which generally does not cause harm to the human body. In addition, as we age, the skeletal system will age, the thorax and spine will contract relatively, and the space occupied by the aorta will become smaller, there will be a relative tortuous extension, which can not be considered a disease.