The diameter of the common iliac artery is normal at 7~10mm, too long a diameter of the common iliac artery may have an impact on health, too long a diameter of the common iliac artery may have the risk of rupture of the aneurysm leading to death. Aneurysm rupture is a more serious disease, in the early stage, the diameter of the common iliac artery may appear to grow, the infection erodes the blood vessel, causing the blood vessel wall to break down, thus the aneurysm rupture may occur, there may be chest pain, chest tightness, abdominal pain and other symptoms, and severe may be shock, can be treated by surgery or interventional therapy, so as to solve the problem of rupture of the aneurysm. Normally, keep the bowels clear, do not exert oneself, keep emotional stability, and prevent high blood pressure, which may lead to excessive incidence of aneurysm. When physical discomfort occurs, you should seek medical attention and active treatment.