Approximately one person in every 1,000 people between the ages of 60 and 65 develops an abdominal aortic aneurysm, according to UpToDate.com. This type of aneurysm occurs when a specific region of the aorta, a large blood vessel that transports blood away from the heart, becomes weak and bulges with blood. People who develop acute abdominal aortic aneurysm symptoms should seek prompt medical care to limit the risk of experiencing severe health complications.
Abdominal or Back Pain
People who develop an abdominal aortic aneurysm may experience sensations of mild to moderate pain within the abdomen or lower back, the Cleveland Clinic reports. Sensations of pain or discomfort may also extend into a person's groin. Typically, pain symptoms caused by an abdominal aortic aneurysm are chronic and persist despite treatment with pain medication.
Pulsating Abdominal Mass
When blood accumulates in the lower portion of the aorta due to an abdominal aortic aneurysm, people may experience an unusual pulsating sensation in the abdominal region. A small mass may also protrude slightly from the abdomen near the bellybutton, UpToDate.com reports, and may be sensitive to the touch.
Rupture
Blood that collects in the aorta may increase the amount of pressure placed on the wall of this blood vessel. Excessive pressure may cause the abdominal aortic aneurysm to break open or rupture. MedlinePlus warns that symptoms associated with a ruptured abdominal aortic aneurysm require emergency medical attention and include sudden, severe abdominal pain; nausea; vomiting; increased heart rate; and clammy skin. Without appropriate treatment, a ruptured abdominal aortic aneurysm can have fatal medical complications.
