Smog is a typical cerebrovascular disease that is feared by everyone, and it can cause dizziness, nausea, and adverse limb movement. The effects of smog can be far-reaching and serious conditions such as cerebral hemorrhage can occur, posing a direct threat to life and health, so it is important to take the disease seriously and treat it effectively. Is there a case of smog that never comes back after one attack? Every patient hopes that the disease will not come back, but the treatment of smog is always a difficult problem. The more traditional treatment for smog is medication, but this conservative treatment does not work. There are also bypasses and patches, which have been clinically proven to have various drawbacks and poor prognosis. This is the reason why many patients have relapses after receiving multiple treatments. The treatment of smog is so tricky, is there really no way to control not to have an attack? In order to solve this problem, a new treatment option has been developed, namely, combined vascular bypass surgery, which is one of the most effective methods for treating smog, and is a major advancement in modern medicine. Combined vascular bypass surgery is much more effective than simple bypass and simple patching. Bypass alone has a limited scope of improvement, and patching alone is slow to work, taking a long time to create neovascularization, during which time cerebral infarction or bleeding can still occur. The use of combined vascular bypass surgery successfully overcomes these limitations by combining both bypass and patching, which can help improve the ischemic state of the patient’s brain tissue in a single operation, with a better postoperative recovery effect and a considerable number of successful treatment cases, making it worthwhile for patients to choose.