Smoker’s disease is a rare disease of unknown etiology, characterized by progressive narrowing and occlusion of the superior segment of the internal carotid artery (ICA) and its main branches within the arterial ring at the base of the brain (Willis ring), resulting in the formation of a network of collateral vessels at the base of the brain, which resembles the smoke exhaled during smoking, hence its name. Smoke disease is not common, but the danger to people is not negligible. Due to the narrowing or occlusion of blood vessels in patients with smoky disease, the blood supply to the brain is insufficient, which can easily lead to cerebral infarction. At the same time, the fragility of blood vessels can also easily cause brain hemorrhage. Therefore, suffering from smog, must be taken seriously, otherwise it will bring significant health risks. At present, many local hospitals in China carry out surgical treatment for smog disease, some adopt direct bypass surgery, while others use traditional patching. So, is it better to use a patch or a bypass as a safe surgical procedure for smog? In fact, these two surgical methods have some shortcomings. Although direct bypass can improve cerebral blood flow and reduce the symptoms of cerebral ischemia immediately after surgery, direct bypass is more difficult to perform, and the scope of improving the blood supply to the brain is limited, so it cannot be widely used. Patching is relatively simple, but postoperative vascularization takes about 3-6 months, during which time there is still a risk of cerebral infarction, and is not very effective in 40%-50% of adult patients with smoldering disease. The combined vascular bypass surgery we use clinically is a more advanced and safe surgery, which was introduced to China by Jin Yongjian from Japan many years ago, and later further improved and refined by a team of cerebrovascular disease experts, which developed the traditional patching into multi-factor patching and expanded the scope of surgery to further expand the brain blood supply, while adding direct bypass to the surgery, which can improve the brain blood supply in a short period of time . At present, the combined vascular bypass has helped more than 1000 patients to be relieved from the trouble of smog disease and regain their health, and had successfully challenged the combined vascular bypass for domestic ultra-low age – 1 year old smog disease patients, which was reported by Beijing TV and many media, and caused wide attention and strong reactions in the society.