Smoke disease is rare and most people have never heard of it. Some patients feel surprised when they are told they have smoke disease, what kind of disease is it? Could it be that the brain has become smoky? Such an explanation is too comical. In fact, smoker’s disease is a cerebrovascular disease that is caused by chronic progressive narrowing of the main arteries in the brain, which leads to the formation of an abnormal vascular network at the base of the skull. Does smog always have to be a bilateral lesion? Smoker’s disease is usually bilateral, although there are some patients who have unilateral disease. Bilateral smoker’s disease means that both sides of the brain have lesions, while unilateral smoker’s disease means that only one side of the brain has lesions, and depending on the progression of the disease, the symptoms may gradually involve the other side. Whether the disease is bilateral or unilateral, it can cause a lot of damage to the patient, so it is important to receive active treatment. However, the treatment of smog has always been a very difficult problem, and many local hospitals can only rely on drugs to maintain and alleviate the disease, but this is ultimately a cure for the symptoms but not the root cause. For better treatment and control, surgical intervention is required. But the traditional surgical methods are either direct vascular bypass or simple patching, which is too limited and the post-operative recovery is not ideal. Combined vascular bypass surgery. This technique successfully combines patching and bypass together, with a two-pronged approach and clearer treatment results, and is highly appreciated by patients and families.