Smoker’s disease is a cerebrovascular disease that is relatively rare. Many people are not aware of this disease and are at a loss as to what to do when they get sick. For example, Mr. Li from Liaoning was diagnosed with smoky disease after he went to the hospital last month for treatment of a brain hemorrhage. When he heard this diagnosis, he was a little confused because he didn’t know what kind of disease it was. The doctor told him that he would need surgery for his smog disease at a later stage, and suggested that he go to Beijing to receive the surgery. But at this point he still had questions in his mind about the success rate of smog surgery. Smog is a relatively rare cerebrovascular disease, which is a narrowing or occlusion of the major arteries of the brain, followed by abnormal changes in the vascular network at the base of the brain, resulting in small, fragile smoke-like vessels. Smoke disease is very dangerous and can cause cerebral infarction and cerebral hemorrhage at any time, so surgery should be performed as soon as it is detected. The traditional surgical procedures for the treatment of smog are direct vascular bypass and indirect vascular bypass. However, these two surgical methods are slightly limited. Although direct vascular bypass surgery is faster and blood is passed after surgery, the scope of blood supply improvement is limited; while indirect vascular bypass surgery, also known as patching, takes 3-6 months to take effect, and there is still a possibility of cerebral infarction and cerebral hemorrhage during this period. So these two surgical methods are not the most ideal. At present, combined vascular bypass surgery is a more ideal surgical procedure for treating smoker’s disease. Combined vascular bypass surgery is a combination of direct bypass and patching in the same surgery. While the direct bypass is performed for rapid blood flow, multifactorial patching is performed on the brain surface to induce the formation of new blood vessels and expand the scope of blood supply improvement, which is a two-pronged approach with better results and higher success rate.