The rise in incidentalomas—unexpected findings discovered during medical imaging—has grown alongside the increased use of brain scans like CT scans and MRIs. These scans are often performed to investigate other health concerns, but they can reveal abnormalities in the brain that were previously unknown. The Health Insurance Fund has raised concerns about the frequency and cost of these procedures, suggesting that they may be overused. One area where these incidental findings are particularly notable is in the detection of saccular aneurysms, which are small balloon-like bulges in the walls of blood vessels in the brain. When these aneurysms rupture, they can cause a subarachnoid hemorrhage, a serious type of stroke that occurs when bleeding happens in the space surrounding the brain. However, most of these aneurysms are found during scans for unrelated reasons and do not rupture. Studies suggest that about 3.9% of brain imaging procedures reveal intracranial aneurysms, but many of these do not lead to a neurovascular catastrophe. The number of ruptured aneurysms, however, has decreased by 40% in recent years, leading experts to predict a more moderate rate of subarachnoid hemorrhage in the future. The reasons behind this decline are still not fully understood, and further research is needed to determine the contributing factors.