Aortic aneurysms often take years to develop. In most cases, there are no early warning signs. It’s important to understand your risk factors and talk with your doctor about whether you should be screened for an aneurysm. Symptoms, including severe chest or back pain, rarely occur unless the aneurysm is ready to rupture. Ruptured aneurysms can cause massive internal bleeding, which can be deadly. A ruptured aneurysm is a medical emergency, and anyone with possible symptoms should call 911 right away.