As Zhao Benshan was discharged from Shanghai Huashan Hospital, the cause of the star’s illness and the treatment process gradually became known to everyone. Zhao Benshan suffered a subarachnoid hemorrhage due to a ruptured intracranial aneurysm and recovered safely after embolization of the aneurysm. In fact, we can have a general understanding of intracranial aneurysm from this incident: (1) The condition is insidious, and in many cases, aneurysm cannot be diagnosed unless it compresses the adjacent nerves and produces obvious symptoms, thus indirectly suggesting the existence of aneurysm. As a star, Zhao Benshan believes that he has many medical advantages that are difficult to reach, but he still cannot confirm the aneurysm before it ruptures; (2) the condition is dangerous, the rupture of cerebral aneurysm can lead to fatal bleeding and brain damage, 1/3 of the people may not be able to save, 1/3 of the people sent to the hospital will be left with serious disabilities, and only 1/3 of the patients can recover well. Zhao Benshan is still relatively lucky. How should brain aneurysms be detected and treated early? The gold standard for the diagnosis of cerebrovascular disease is whole brain digital angiography, but it is an invasive test that can cause some pain to the person being examined and therefore cannot be used as a physical examination or screening tool. Intracranial ultrasonography can detect unruptured intracranial aneurysms at an early stage, but it requires a very experienced physician and has a high rate of misdiagnosis due to its low sensitivity and specificity, although the method is non-invasive, it is also difficult to use as a reliable clinical examination. Is it possible for modern medical technology to detect and manage aneurysms early? The answer is yes, CT angiography can detect intracranial aneurysms at an early stage, which is a non-invasive test and is now the second most accurate method to diagnose cerebral aneurysms after whole brain DSA. MRI is a non-invasive and highly accurate method to determine the presence of intracranial hemangioma. It can reconstruct the blood vessels in the brain through software and has a sensitivity of 97% for aneurysms over 3 mm. However, if the aneurysm is enlarged during follow-up or if the aneurysm is irregularly shaped or located in the brain, necessary medical intervention can greatly reduce the risk of aneurysm rupture. The ideal management is to isolate the aneurysm from the normal blood flow. The methods of management are surgical clamping and endovascular intervention, both of which have advantages and disadvantages, depending on the specific shape of the aneurysm and the patient’s condition. The outcome is mostly satisfactory if the aneurysm can be treated promptly and properly before or after rupture. Because brain aneurysm is after all a benign lesion in the brain.