An abdominal aortic aneurysm is a condition where the lower part of the aorta, the main blood vessel that carries blood from the heart to the body, becomes enlarged or bulges. The abdominal aorta runs through the chest into the abdomen, and when it weakens, it can form a dangerous swelling.
This condition is serious because if the aneurysm ruptures, it can cause severe internal bleeding that may be life-threatening. Early detection is difficult since many people do not experience symptoms until the condition becomes severe.
What are the symptoms of abdominal aortic aneurysm?
Abdominal aortic aneurysm often develops slowly and may not show any symptoms in the early stages. Many people live with it without knowing until it grows larger.
Deep, persistent abdominal pain
A common symptom is a deep and constant pain in the abdomen or side of the belly. This pain may gradually worsen as the aneurysm expands.
Back pain
Some patients may experience ongoing lower back pain that does not go away with rest. This can indicate pressure from the expanding aorta.
Pulsing sensation near the abdomen
A noticeable throbbing or pulsing feeling near the belly button may also occur as blood flows through the enlarged artery.
When should you see a doctor for abdominal aortic aneurysm?
If you experience sudden, severe, or unexplained abdominal or back pain, immediate medical attention is required. A ruptured aneurysm is a medical emergency and can be fatal without urgent treatment.
Even if symptoms are mild, individuals at risk should undergo regular medical screening to detect changes early.
What causes abdominal aortic aneurysm?
Abdominal aortic aneurysm develops when the walls of the aorta weaken over time. Several medical conditions and lifestyle factors contribute to this weakening.
Atherosclerosis (hardening of arteries)
Fatty deposits build up in the artery walls, reducing flexibility and weakening the aorta.
High blood pressure
Chronic high blood pressure puts continuous strain on artery walls, increasing the risk of damage and enlargement.
Blood vessel diseases
Inflammatory conditions affecting blood vessels can make them swollen and weak.
Aortic infection
Although rare, bacterial infections can damage the aortic wall and lead to aneurysm formation.
Trauma
Severe physical injury, such as from a car accident, may also damage the abdominal aorta.
What are the risk factors for abdominal aortic aneurysm?
Certain groups of people are more likely to develop this condition due to genetic, biological, and lifestyle factors.
Smoking and tobacco use
Smoking is the strongest risk factor. It weakens blood vessels and significantly increases the risk of aneurysm formation and rupture.
Age
People aged 65 and older are at higher risk, especially those with a history of cardiovascular disease.
Gender
Men are more likely to develop abdominal aortic aneurysms than women.
Family history
Having close relatives with the condition increases your likelihood of developing it.
Other aneurysms
Individuals with aneurysms in other parts of the body are at increased risk.
How is abdominal aortic aneurysm diagnosed?
Doctors typically diagnose abdominal aortic aneurysm using imaging tests that help visualize the size and shape of the aorta.
Ultrasound scanning
This is the most common and non-invasive method used for screening and early detection.
CT scan
A CT scan provides detailed images and helps determine the exact size and location of the aneurysm.
MRI scan
MRI may also be used for further evaluation in some cases.
What complications can abdominal aortic aneurysm cause?
If left untreated, abdominal aortic aneurysm can lead to serious and life-threatening complications.
Aortic dissection
This occurs when the layers of the aorta wall tear, causing internal bleeding and severe pain.
Rupture
A rupture is the most dangerous complication and can lead to massive internal bleeding and sudden death if not treated immediately.
Blood clots
Clots may form inside the aneurysm and travel to other parts of the body, blocking blood flow to organs or limbs.
Symptoms of rupture may include sudden severe abdominal or back pain, low blood pressure, and rapid heartbeat.
How can abdominal aortic aneurysm be prevented?
While not all cases can be prevented, several lifestyle changes can reduce the risk or slow progression.
Quit smoking
Stopping tobacco use is the most important preventive measure to protect blood vessels.
Healthy diet
Eating fruits, vegetables, whole grains, lean proteins, and reducing salt and unhealthy fats supports vascular health.
Control blood pressure and cholesterol
Proper medication and lifestyle management help reduce strain on the aorta.
Regular exercise
At least 150 minutes of moderate activity per week helps improve cardiovascular health and circulation.
What is the outlook for abdominal aortic aneurysm?
The outcome depends on early detection, aneurysm size, and growth rate. Small aneurysms may be monitored regularly, while larger or rapidly growing ones may require surgery.
With proper medical care, many patients manage the condition effectively and reduce the risk of rupture. However, untreated large aneurysms remain a serious health risk.
