The aorta is the largest artery in the body, which emanates directly from the heart and carries oxygen-rich arterial blood to all parts of the body. The aorta located in the thoracic cavity is called the thoracic aorta, and the aorta that runs down the left side of the crural column and extends to the diaphragm into the abdomen is called the abdominal aorta. The abdominal aorta mainly supplies blood to the lower body. It divides into bilateral iliac arteries at the level of the navel, supplying blood to both lower limbs and the pelvis. The normal diameter of the abdominal aorta is about 1.5 to 1.8 cm. Under the continuous pressure impact of arterial blood flow in the aorta, it causes localized weakness of the arterial wall, making it partially swollen or protruding. If the swelling or bulge exceeds 50% of the normal value, it is called an abdominal aortic aneurysm, which is the most common of all dilated aortic diseases. As the weak part of the arterial wall is pressurized, it gradually expands to form an aneurysm. The principle is like blowing up a balloon, once the diameter of the artery widens beyond the safe range, it may cause rupture, which is a direct threat to the safety of people’s lives. There are about 200,000 cases of abdominal aortic aneurysm diagnosed in the United States each year, of which about 15,000 are at risk of rupture. In recent years, the incidence of abdominal aortic aneurysm in China has shown an upward trend, and statistics show that the incidence of abdominal aortic aneurysm is about 8.8% among people over 65 years old. There are many patients who will suddenly suffer from aneurysm rupture without any symptoms, and, the mortality rate of patients with such ruptured aneurysms can be up to more than 80% to 90%. Therefore, abdominal aortic aneurysms are also called “time bombs” in the human body. Fortunately, there are highly effective and safe ways to diagnose, treat, and even cure abdominal aortic aneurysms before they become symptomatic. How to prevent early? 1 .Strengthen health education, raise people’s health awareness, and develop good health and hygiene habits. Elderly people over 55 years old should strictly control fat intake and avoid overeating. Often eat low fat, low sugar, high fiber, high protein food and fresh vegetables and fruits, help to reduce the incidence of atherosclerosis. 2, pay attention to behavioral regulation, quit smoking and drinking, for long-term smoking in more than 20 cigarettes a day should be strictly controlled, it is difficult to quit smoking should be patiently persuade, explain the advantages and disadvantages, and gradually reduce, in order to reduce the damage of harmful gases on the blood vessel wall. 3, maintain adequate sleep, emotional stability, comfortable mood, avoid excessive tension, emotional excitement. Actively participate in social activities within your ability, appropriate physical activities, improve the body’s ability to resist disease. Avoid straining to defecate and coughing violently. 4, strict control of obesity, high blood fat, active treatment of diabetes and hypertension. 5.Once diagnosed with abdominal aortic aneurysm, it should strictly control the blood pressure, avoid trauma, forceful defecation and violent cough. Avoid all activities that increase the abdominal pressure, and observe closely whether there is abdominal pain. Prevent rupture of abdominal aortic aneurysm. What are the treatment options for abdominal aortic aneurysm? In recent years, the surgical treatment of abdominal aortic aneurysm has been improved with the development of vascular surgery technology, which has evolved from the initial ligation, embolization and wrapping to the classic transabdominal surgical aneurysm resection with artificial vascular replacement, as well as the newly emerging vascular endoluminal repair and laparoscopic aneurysm resection with artificial vascular replacement, etc. The treatment of abdominal aortic aneurysm has been improved with the development of vascular surgery technology.