Abdominal aortic aneurysms result when the portion of the aortic artery that runs through the abdomen ruptures. This artery is one of the largest in the body and a rupture can have serious consequences. Symptoms exist but, in most cases, do not manifest until it ruptures.

Small Aneurysms

Aortic aneurysms typically grow very slowly over time. Many remain very small and will never rupture. Aneurysms not in danger of rupturing are unlikely to produce any symptoms.

General Symptoms

While many people do not experience any symptoms, mild to moderate symptoms can persist for years if a aneurysm continues to grow. You might experience pain and tenderness in the middle of the abdomen that spreads to the back. Changing positions often relieves the pain. You might also notice a frequent pulsing feeling in the abdomen

Symptoms of Rapidly Expanding Aneurysm

While most aneurysms grow slowly, some can expand rather rapidly. This will produce acute severe pain in the abdomen and back that grows in intensity. At this stage, your aneurysm has a high chance of rupture.

Symptoms of Rupture

If an abdominal aneurysm ruptures, you will feel severe pain in the abdomen and back, pulsation, abdominal distension (swelling of the stomach) and shock (severely low blood pressure)

Screening

Since this condition is mostly asymptomatic, those at risk of this condition should get themselves screened. This includes anyone over 60 who smokes, has high blood pressure, atherosclerosis and has a family history.

Source:

The Mayo Clinic

MedicineNet.com