Smog is a progressive, developmental disease with a very low incidence and a relatively small number of cases nationwide. In general, local hospitals are not experienced in treating smog, and the technology is not mature, even some hospitals have doctors who have not been exposed to smog cases. Therefore, the best hospitals for the treatment of smog are usually located in the first-tier cities like Beijing and Shanghai. As a rare disease, the cost of treatment for smog is generally related to a variety of factors, including the degree of malformation of the patient’s vascular network at the base of the brain, the cost of care during surgery, and the patient’s own specific situation, and requires a comprehensive assessment. Smoldering disease is a cerebrovascular malformation that should be treated as early as possible once diagnosed. Because smog is unlikely to heal on its own if left untreated, it will only get worse as it drags on. In some cases, the onset of smog is very sudden, and once a cerebral infarction or cerebral hemorrhage occurs, the consequences are extremely serious, and may even be severely disabling or fatal. Most scholars believe that conservative medical treatment can only provide some relief for early symptoms, but surgery is the most effective way. The combined vascular bypass surgery is a very effective way to treat smog, which was introduced by Prof. Jin from Japan in early years, and later improved and enhanced in China, making the effect more and more remarkable. In addition, this surgery is a combination of direct bypass and patching, which can quickly establish a good blood flow side channel for the brain, and better improve the blood supply to the brain, and make the effect of the surgery even greater.