Smoky disease is a relatively rare cerebrovascular disease that is caused by chronic progressive stenosis or occlusion of the main branches of the cerebral willis ring arteries bilaterally, followed by compensatory hyperplasia of the penetrating arteries at the base of the skull and the formation of an abnormal vascular network at the base of the skull, which appears as a cloud of smoke on cerebral angiography, hence the image of smoky disease. Similar to smog, there is also a disease called smog syndrome. What is smog syndrome? Smoky syndrome is usually caused by congenital factors, such as bilateral vascular lesions in the brain, bilateral stenosis and occlusion of major arteries, and bilateral smoke-like changes in the skull base; while smoky syndrome is mostly combined with acquired factors, many of which are unilateral vascular lesions in the brain, i.e., unilateral arterial stenosis and occlusion, and unilateral smoke-like vascular formation in the skull base, Immunologic diseases can be combined with atherosclerosis, vasculitis, SLE and other metabolic and immunologic diseases. However, whether it is a typical smog disease or a smog syndrome, the dangers and consequences are very serious and frightening, and can lead to cerebral ischemia, cerebral infarction, cerebral hemorrhage, seizures, and sometimes even life-threatening. Therefore, regardless of smog disease or smog syndrome, once the onset of the disease is clearly diagnosed, prompt surgical treatment is recommended. Because for the treatment of smog disease and smog syndrome, the medical community generally believes that conservative medical treatment is of little significance and requires surgical means to achieve good results.