Widening of the ascending aorta by 36mm is not normal. The internal diameter of the ascending aorta in normal people is usually within 30mm, when the internal diameter of the ascending aorta exceeds 35mm, it suggests widening of the ascending aorta. Therefore, an ascending aortic internal diameter of 36mm is abnormal. Widening of the ascending aorta is most often considered to be caused by hypertension, aortic valve insufficiency, Marfonte’s syndrome, aortic coarctation, syphilis infections, and other connective tissue disorders, and can be diagnosed by cardiac ultrasound and angiography. When widening of the ascending aorta is detected, it is recommended to consult a doctor in a timely manner and standardize the treatment under the doctor’s guidance, so as to avoid the formation of ascending aortic aneurysm due to the continued widening of the ascending aorta, which may lead to hemorrhage or even life-threatening injuries in case of rupture of the aneurysm.