Brain Aneurysm – Overview A brain aneurysm is a bulge or ballooning in a blood vessel in the brain, caused by a weakened artery wall. If it ruptures, it leads to bleeding in the brain — a life-threatening condition known as a subarachnoid haemorrhage. However, many aneurysms are small and unruptured, often going unnoticed until discovered during imaging for unrelated issues. The risk depends on factors such as its size, shape, and location. Small aneurysms may remain stable for years without causing symptoms. Larger or irregularly shaped ones, however, are more likely to rupture and require close monitoring or intervention. Common symptoms of an unruptured brain aneurysm include: When a rupture occurs, it is sudden and severe. Signs include: In South Africa, diagnosis often depends on access to CT scans or MRIs. Many rural facilities lack immediate imaging, which can delay detection and treatment. Larger hospitals and neurology centres offer comprehensive care, including neurosurgical interventions. Although potentially deadly, early detection and careful management significantly improve outcomes. Advances in imaging, microsurgery, and endovascular treatments now offer hope for people affected by this silent but serious condition. 👉 [Next: Causes and Risk Factors of Brain Aneurysm]