In clinical practice, many patients with cerebral infarction have recurrent attacks without being able to determine the cause. After a cerebral infarction occurs, it causes ischemic necrosis of brain tissue in some areas of the patient’s brain, which impairs neurological function, resulting in headache, aphasia, confusion, hemiparesis and other symptoms. Here we want to tell the majority of patients: recurrent brain infarction, need to be alert to smoke disease! Smoker’s disease is a relatively rare cerebrovascular disease, characterized by slow intimal thickening of the arteries at the end of the bilateral internal carotid arteries and the beginning of the anterior and middle cerebral arteries, gradual narrowing of the arterial lumen to occlusion, and compensatory dilation of the penetrating arteries at the base of the brain. Cerebral infarction is caused by the narrowing or occlusion of the vascular network at the base of the skull, which prevents the normal supply of blood to the brain and leads to a series of symptoms. Therefore, most patients with smog are diagnosed after an infarction. Patients can be diagnosed by MRI or cerebral angiography, which can be life-threatening in severe attacks. Although smog is a rare disease, it is not an incurable one. It is now recognized that medications are not effective in treating smog, but only in relieving the immediate symptoms. An effective procedure for treating smog is combined vascular bypass surgery. This procedure combines both direct and indirect bypasses to reconstruct the blood flow bypass more comprehensively and ensure adequate blood supply to the brain.