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What Causes An Aneurysm In The Aorta?

An aneurysm may occur on any blood vessel when the walls of the same weaken over time. An aneurysm on aorta occurs when the aorta bulges out and weakens. An aorta is essentially the major artery of the heart which is known to the largest of the blood vessel in our entire body.

What Causes An Aneurysm In The Aorta?

What Causes An Aneurysm In The Aorta?

As mentioned earlier, aneurysm in the aorta occurs when the walls of aorta becomes weak. Such weakness can be congenital or may occur due to some form of injury. An aortic aneurysm occur due to-

If The Patient Is A Victim Of High Blood Pressure: Extreme and chronic high blood pressure naturally creates some amount of stress in the walls of the aortic blood vessel. Such form of chronic stress tends to weaken the walls of the aorta over years and form bulges on it.

Aortic Aneurysm Can Occur If The Patient Has Diabetes: Chronic and out of control diabetes is responsible for the damage of the aorta making it weak and easily vulnerable to clogging. A damaged blood vessel becomes an easy prey to aneurysm.

A Common Medical Condition Described By Clogging Of Blood Vessel Is Called Atherosclerosis: Such a condition leads to hardening of the aortic blood vessel due to deposition of plague due to high cholesterol. Atherosclerosis may damage the aorta and make it weak thereby inviting a number of heart diseases. When patient has such a condition, he may become susceptible to aneurysm.

Infection Due to Bacteria: There are cases in which bacterial infection may grow in the blood vessels of the heart including the aorta. Due to such infection the blood vessels may grow weak and damage. This leads to a form of aortic aneurysm called the mycotic aneurysm.

Genetic Ailments: Sometimes, there may be degeneration of the blood vessels due to some types of genetic diseases. When such degeneration occurs in aorta it may give rise to aortic aneurysm.

Other Diseases: Inflammation in the blood vessel and aorta in particular due to other organic diseases may affect the strength of the blood vessel thereby making formation of aneurysm common.

Injury: Lastly, any form of injury due to any circumstances may damage the blood vessels and even aorta. Such a condition may allow aortic aneurysm to develop easily.

What are the Risk Factors of Having an Aortic Aneurysm?

Some people from the population may be more susceptible to aortic aneurysm that others due the following risk factors-

  • It is seen that men are more susceptible to aortic aneurysm than females.
  • Age is an important risk factor. People above the age of 55 years are at higher risk of having aortic aneurysm than others.
  • Presences of congenital or inherited diseases that are particularly related to weakening of aortic blood vessel make patients easy prey to aortic aneurysm.
  • Patients who have high blood pressure should particularly be careful as they are at risk of developing aortic aneurysm
  • Smoking increases the risk of developing brain aneurysm.
  • Patients who have problems of high cholesterol are at a risk of having aortic aneurysm because cholesterol tend to weaken the blood vessels including arteries

How to Lower The Risk Of Having An Aneurysm In Aorta?

Although in case of congenital disease and hereditary factors, the risk of aortic aneurysm cannot be controlled, one can live a healthy lifestyle to prevent the risk of aortic aneurysm from occurring. To start with a patient must keep his blood pressure under control. High blood pressure affects the blood vessels. He/she must eat healthy and balanced diet and exercise regularly. An important practice involves quitting of smoking as it causes adverse effects on the blood vessels. Stress management techniques should be used effectively.


  1. Mayo Clinic. (2021). Aortic Aneurysm. https://www.mayoclinic.org/diseases-conditions/aortic-aneurysm/symptoms-causes/syc-20369472
  2. National Heart, Lung, and Blood Institute. (2021). Aortic Aneurysm. https://www.nhlbi.nih.gov/health-topics/aortic-aneurysm
  3. American Heart Association. (2021). What is an Aortic Aneurysm? https://www.heart.org/en/health-topics/aortic-aneurysm/what-is-an-aortic-aneurysm
  4. Johns Hopkins Medicine. (2021). Aneurysm: Causes, Symptoms, and Treatments. https://www.hopkinsmedicine.org/health/conditions-and-diseases/aneurysm

Also Read:

Pramod Kerkar, M.D., FFARCSI, DA
Pramod Kerkar, M.D., FFARCSI, DA
Written, Edited or Reviewed By: Pramod Kerkar, M.D., FFARCSI, DA Pain Assist Inc. This article does not provide medical advice. See disclaimer
Last Modified On:July 24, 2023

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