Because of the rarity of the disease, few people are familiar with it, and many patients seem dismayed when they learn they have it. Although rare, the dangers of smog are terrible, most directly affecting the patient’s blood supply to the brain, which can lead to cerebral infarction and cerebral hemorrhage, and may even be life-threatening. Smoke disease is one of the destroyers of health, and it is natural that treatment should be given first priority after the disease. Currently, many hospitals do not specialize in the treatment of smog because they have little knowledge of the disease and may simply treat it with symptomatic medication. However, it is important to know that smog is far from solved by medication and must be treated by surgical procedures. The traditional surgical methods for treating smog are simple direct bypass surgery or simple patching surgery, both of which are too single and limited, and the results may not be ideal. Combined vascular bypass surgery can overcome the shortcomings of these two methods, combining direct bypass and patching in a two-pronged approach that can improve the blood supply to the brain more comprehensively.