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A 40-year-old member asked:

what causes abdominal aortic aneurysm?

4 doctor answers11 doctors weighed in
Dr. Mark Stern
Cardiology 46 years experience
Hypertension & genes: Genetics plus hypertension plus age.
Dr. Oliver Aalami
Vascular Surgery 23 years experience
The three greatest risk factors for AAAs are being MALE, > 65 yrs, and having ever smoked.
Oct 17, 2011
Dr. Mark Stern
Dr. Mark Stern commented
Cardiology 46 years experience
Provided original answer
Dr Oliver Aalami makes a very good point about smoking in addition to age and genes
Oct 18, 2011
Dr. Mario Matos-Cruz
Thoracic Surgery 39 years experience
Most abdominal aneurysms are arteriosclerotic resulting from cystic medial necrosis of the aortic wall secondary to arteriosclerotic obliteration of the vasa vasorum. Genetics determine your predisposition to arteiosclerosis and cigarette smoking accelerates the process.
Feb 22, 2012
Dr. Mario Matos-Cruz
Thoracic Surgery 39 years experience
Medial necrosis: Cystic medial necrosis induced by arteriosclerotic obliteration of the vasa vasorum of the aorta is the most common cause.
Dr. Linda Harris
Vascular Surgery 34 years experience
The cause of aortic aneurysm development is NOT entirely understood. There are many biochemical changes, and some inflammatory reactions that are thought to be associated with development. There is a higher risk of aneurysms with first degree family members having aneurysms. Aneurysm risk also increases with smoking, age, and male gender.
Apr 4, 2012
Dr. Rick Koch
Cardiology 22 years experience
Causes: Htn, smoking, hypercholesteremia, genetic factors. Males over 65 who ever smoked need screening with ultrasound.
Dr. Kevin Nolan
Vascular Surgery 35 years experience
.? AAA: They are a bulge in the wall of the aorta (your main artery running through your abdomen and ultimately supplying the blood to your legs) from a weakness. They can be thought of like a bulge in your garden hose. The exact cause is still under investigation.
Dr. Brian Mott
Dr. Brian Mott commented
Thoracic Surgery 29 years experience
The vast majority of AAA are caused by atherosclerotic disease. There are some rare other causes. Reducing the risks of atherosclerosis will reduce the risks of AAA
Apr 3, 2013

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Similar questions

A 41-year-old member asked:

Can falling cause an abdominal aortic aneurysm?

3 doctor answers15 doctors weighed in
Dr. Oliver Aalami
Vascular Surgery 23 years experience
No: Trauma such as falling does not cause aaas. They typically form slowly over time due to inflammation in the wall of the aorta. Risk factors are age >65, smoking, male gender and a family history. Interestingly high speed motor vehicle accidents can cause a tear in the thoracic aorta. These are called dissections.
Dr. Jacques Kpodonu
Cardiology 27 years experience
Not unless it is a traumatic pseudo aneurysm
Jul 21, 2012
A 33-year-old member asked:

What can cause an abdominal aortic aneurysm?

4 doctor answers14 doctors weighed in
Dr. Mario Matos-Cruz
Thoracic Surgery 39 years experience
Arteriosclerosis.: Atherosclerosis induced cystic medial necrosis is the most common cause of infrarenal abdominal aortic aneurysms.
A 38-year-old member asked:

What happens during a liver transplant operation for recipient?

1 doctor answer4 doctors weighed in
Dr. Cosme Manzarbeitia
General Surgery 39 years experience
Removal : Of the diseased liver and implantation of the healthy new liver.
A 34-year-old member asked:

What can cause an intense pulse in the lower left abdomen / left side, abdominal aortic aneurysm?

2 doctor answers7 doctors weighed in
Dr. Robert Binford
Thoracic Surgery 38 years experience
Hard to say w/o exam: In a thin person often you can actually feel the normal aorta pulse. The aorta divides into a left and right common iliac arteries at the level of your navel. So left lower abdomen would be left common iliac. It could be a normal finding or it could be an aneurysm of iliac. It could also be an abdominal wall muscle twitch or spasm. See your doctor. Needs a physical exam to really tell.
Rainsville, AL
A 33-year-old male asked:

Can an abdominal aortic aneurysm cause a visible bulge to be seen in the abdomen?

1 doctor answer2 doctors weighed in
Dr. Donald Colantino
Internal Medicine 61 years experience
Abdominal bulge: It would have to be a huge abdominal aortic aneurysm to form a visible bulge which would pulsate also. There are more common causes of an abdominal bulge such as a ventral hernia or diastasis of the rectus muscles. A physician can examine and advise you about the abdominal bulge.

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Last updated Oct 11, 2018

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