Step 1: Atherosclerosis:
Atherosclerosis is the most common cause of aneurysms, particularly in the aorta. The accumulation of fatty deposits in the walls of arteries weakens the vessel, leading to the formation of an aneurysm.
Step 2: Genetic Factors:
Inherited conditions like Marfan syndrome or Ehlers-Danlos syndrome can cause weakened vessel walls, making them prone to aneurysm formation.
Step 3: Hypertension:
Chronic high blood pressure can increase the stress on arterial walls, leading to weakening and the development of aneurysms.
Step 4: Trauma:
Trauma, such as from a car accident or surgical injury, can cause direct damage to blood vessels, resulting in an aneurysm.
Step 5: Infection:
Certain infections, particularly bacterial infections like syphilis or endocarditis, can weaken blood vessel walls and contribute to aneurysm formation.