The aorta is the main blood vessel (artery) that carries blood away from your heart to the rest of your body. An aneurysm is a bulge in an artery wall. An abdominal aortic aneurysm is a bulge in the part of your aorta that passes through your belly.
Aneurysms may cause a pulsing feeling in your belly
Aneurysms that are large or are growing need surgery to prevent them from bursting
If the aneurysm bursts, blood flows out and you have severe pain and low blood pressure
If the aneurysm bursts, you'll die if you don't have surgery
Doctors often find an aneurysm during a regular exam or from an imaging test (such as an x-ray or CT scan) taken for another problem and found by accident
You're more likely to have an abdominal aortic aneurysm if:
The most common cause is a weakness in the wall of your aorta. This weakness is usually caused by hardening and narrowing of your aorta (atherosclerosis Atherosclerosis In people with atherosclerosis, patchy deposits of fatty material (atheromas or atherosclerotic plaques) develop in the walls of medium-sized and large arteries, leading to reduced or blocked... read more ).
Less common causes are:
Injuries to the aorta, often from a car crash
Diseases that cause inflammation of the aorta, such as aortitis Aortitis Aortitis is inflammation of the aorta. The aorta is the largest artery of the body. It receives oxygen-rich blood from the heart and distributes it to the body through smaller arteries that... read more
Disorders that run in families and damage your body's tissues, such as Marfan syndrome Marfan Syndrome Marfan syndrome is a rare hereditary disorder of connective tissue, resulting in abnormalities of the eyes, bones, heart, blood vessels, lungs, and central nervous system. This syndrome is caused... read more
Many people have no symptoms.
Symptoms of an abdominal aortic aneurysm include:
If your aneurysm bursts, symptoms include:
You'll die if your aneurysm bursts and you don't get treatment.
Doctors usually find aneurysms during regular physical exams if they feel a pulsing bulge in the middle of your belly. Your doctor will listen over the bulge with a stethoscope to try to hear the whooshing sound that your blood makes as it moves through the aneurysm. They also may find an aneurysm by accident when they do an imaging test (such as an x-ray or CT scan) for another reason.
To check the size of the aneurysm, doctors may order:
Doctors will check on the size of your aneurysm about every 3 to 6 months.
If your aneurysm is smaller than about 2 inches wide, doctors may have you:
If you have a larger aneurysm, you'll need surgery.
Doctors may do surgery to insert a tube (graft) into your aorta to repair the aneurysm. Two types of surgery are possible. The doctor may cut open your belly to insert the graft. Or the doctor may put the graft in your aorta by going through an artery in the upper part of your leg. Which type of surgery you have depends on your age, health, and what part of the aorta your aneurysm is in.
If your aneurysm bursts or is about to burst, emergency surgery to fix it may save your life. Without surgery, you'll die.