Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Aneurysm ?
    ### Response:
    If you have an aortic aneurysm but no symptoms, your doctor may find it by chance during a routine physical exam. More often, doctors find aneurysms during tests done for other reasons, such as chest or abdominal pain.
                
If you have an abdominal aortic aneurysm (AAA), your doctor may feel a throbbing mass in your abdomen.
    