Smog, when many people first hear that they or a family member has it, they don’t have a clear idea of what it is. What exactly is smog? Is it serious? Should it be treated surgically or conservatively? Smoke disease is a rare cerebrovascular disease, usually patients will have dizziness, headache, sudden weakness and numbness on one or both sides of the limbs, and other symptoms. This not only prevents smog patients from being detected in a timely manner, but also prevents them from being treated symptomatically. This not only prevents smog patients from receiving timely treatment, but may also worsen their condition. Once the diagnosis of smog is confirmed, surgery should be sought in a timely manner. Long-term clinical observation and practice have proven the ineffectiveness of drug treatment, and many hospitals currently perform direct bypass and indirect bypass (patching) surgery for smog, but each of these procedures has its own drawbacks and cannot be the best choice for surgery. So is there really no better treatment for such a rare form of smog? In fact, there is a new type of surgery, called combined vascular bypass surgery, which is introduced to China by some medical experts after studying from Japan in order to solve the plight of domestic smog patients, and after returning to China, the efficiency of this surgery has been continuously improved. According to the introduction, combined vascular bypass surgery is a combination of two traditional surgeries, avoiding the defects of a single surgery to the maximum extent possible, while making bypass and patching done in the same surgery, improving the blood supply and expanding the scope of blood supply, killing two birds with one stone. Many patients with smog have already undergone this procedure and have achieved excellent results.