Aneurysm is an aneurysmal expansion of the arterial lumen due to the long-term action of hypertension, trauma, infection and other factors on the arterial blood vessels. It is not a tumor, so aneurysms do not involve the term benign or malignant. In terms of the severity of its condition, an aneurysm can usually be classified as a benign disease with a good prognosis and little impact on life expectancy as long as the condition is treated promptly and not delayed. If left untreated, the aneurysm can rupture and bleed if the expansion reaches a certain level, which can cause hemorrhagic shock in severe cases and can endanger the patient’s life in more serious cases. Aneurysms have different clinical manifestations depending on where they are located. If the aneurysm is in a limb, it can cause pulsation or pain at the surface of the body due to its relatively superficial location. If it is an organ aneurysm, it will often cause pain in the area where the corresponding organ is located, such as splenic aneurysm and hepatic aneurysm. If it is an intracranial aneurysm, the early manifestation is headache, and once it causes rupture and bleeding, hemiparesis, aphasia, coma, and even endangering the patient’s life can occur. It should be noted that some special clinical aneurysms, such as thoracic aortic aneurysm or abdominal aortic aneurysm, once rupture occurs will cause pain to the patient and easily bleed life-threatening. Therefore, close dynamic observation is required when the diameter of aneurysm is less than 5cm, and timely surgery is recommended when the diameter is ≥5cm. With the continuous improvement of interventional technology, aneurysm can be embolized or overlapping stent implantation under minimally invasive intervention. For example, spring coil embolization can be chosen for intracranial aneurysms, and spring coil embolization with stent implantation can be chosen for organ aneurysms.