Cerebral vascular aneurysm generally refers to intracranial aneurysms. Unruptured larger aneurysms can present with headache, dizziness, blurred vision, etc. Unruptured small to medium-sized intracranial aneurysms are generally asymptomatic. Before rupture of large intracranial aneurysms, patients may experience nerve compression symptoms, mainly manifested as headache, dizziness, blurred vision. Some patients may also experience facial pain such as pain in the upper jaw and forehead. For unruptured small and medium-sized hemangiomas, they are usually asymptomatic clinically and are usually found during physical examination. For patients with intracranial aneurysm, it is important to pay attention and go to the hospital for examination and treatment in time to avoid rupture of the aneurysm, which will bring serious consequences.