Typically, an abdominal aortic aneurysm does not produce any symptoms. However, when symptoms do arise, sharp pains in the abdomen or back are common. This pain is sometimes accompanied by abnormal pulsations in the abdomen. A careful palpation, or feeling of the abdomen, can be done by a physician to detect an AAA, but an abdominal ultrasound or CT scan is most reliable in detecting the condition.