Abdominal aortic aneurysm is diagnosed when the lumen of the abdominal aorta is distended due to a lesion in the vessel wall of the abdominal aorta, and when the increase in diameter is greater than 50% of the normal canal diameter. The broad definition of abdominal aortic aneurysm includes true and pseudoaneurysms caused by a variety of causes, such as atherosclerosis, trauma, inflammation and infection; while the narrow definition of abdominal aortic aneurysm mainly refers to true aneurysms caused by atherosclerosis. What are the risks of abdominal aortic aneurysm? As the diameter of abdominal aortic aneurysm increases, the wall of the blood vessel gradually becomes thinner, and then rupture occurs, which is life-threatening, so abdominal aortic aneurysm is called a “time bomb” in the human body. How are abdominal aortic aneurysms treated? There is no effective conservative treatment that can reduce the diameter of abdominal aortic aneurysm or its growth rate, so once abdominal aortic aneurysm is clearly diagnosed, it should be actively followed up, including annual examination to confirm the diameter of the aneurysm and its growth rate, and timely treatment should be provided if it is suitable for surgery. Treatment options include traditional transabdominal resection of the aneurysm and replacement of the artificial vessel. Minimally invasive abdominal aortic overlay stenting is used to isolate the aortic aneurysm by placing an artificial graft in both procedures. The Department of Vascular Surgery has accumulated a wealth of surgical experience over the years. Both conventional surgery or endoluminal minimally invasive treatment can achieve good treatment results.