An aneurysm is a bulge or ballooning in a blood vessel caused by a weakness in the vessel wall. This condition can occur in various parts of the body, including the brain, aorta, and legs. If an aneurysm grows too large, it can rupture, leading to serious health complications, such as internal bleeding or stroke. Aneurysms can be caused by factors like high blood pressure, smoking, and genetic conditions. Symptoms may vary depending on the location and size of the aneurysm, and some may not show any symptoms at all. Regular check-ups and imaging tests can help detect aneurysms early.