I am trying to find out something. I am trying to find if one cerebral aneurysm can cause multiple aneurysms to form. I have researched and researched but not finding any information on it. In 2004, I had one. It is just over 2 years later and I now have 10 of these things. Has anyone had any of this happen to them? Is it possible that one aneurysm can cause more to appear over time? Any help is great. If you find a link please send me the link regarding it.