Smog is a cerebrovascular disease with a low incidence. The first case of smog in the world was found in Japan, and Japan, where smog is found, has a high incidence rate, followed by Korea and China, where many smog patients are also distributed. The nature of smog disease is not as mild as its name reads, making it imperceptibly dangerous. In fact, it is a very dangerous disease that causes cerebral infarction and cerebral hemorrhage, which can be disabling or life-threatening. What are the surgical treatment options for smoker’s disease? Smoker’s disease is a lesion of the cerebral vasculature in which chronic progressive narrowing or occlusion of the terminal internal carotid artery, the anterior cerebral artery, the middle cerebral artery, and sometimes the posterior cerebral artery, subsequently leads to the formation of a network of small, malformed vessels in the shape of smoke at the base of the skull. It is impossible for this rare vascular malformation to heal on its own without treatment. The medical community has confirmed after years of basic clinical research that surgical treatment is the scientifically correct treatment for smog, restoring normal blood flow through new blood vessels. The surgical approach to treating smog is also important. The traditional direct bypass alone and patching alone both have some problems and drawbacks, such as small scope of blood supply improvement and slow onset of effect. Combined vascular bypass can solve these problems well. This technique is a dual procedure of bypass + patching, which can complete better blood flow reconstruction and make the blood supply improvement more significant. According to statistics, many smog patients have been rehabilitated by combined vascular bypass in recent years.