People know very well that the earlier any disease is treated, the better, but often people are not aware of some disease symptoms, resulting in failure to detect their disease in time and delay in treatment. Smoke disease is a relatively rare cerebrovascular disease, few people really understand and have heard of this disease, so if you have the disease but not early detection is very disadvantageous. What is the onset of smog like and how can you tell? Knowing the symptoms of smog disease in advance is good for early detection and diagnosis, and early treatment can also reduce the damage of the disease to patients. Clinically, the symptoms of smog have the following two aspects: 1. Ischemic symptoms The onset of smog is due to the narrowing or occlusion of the intracranial segment of the internal carotid artery, which leads to the appearance of new abnormal blood vessels, resulting in insufficient blood supply to the brain and a series of ischemic symptoms, which can lead to cerebral infarction in severe cases, mainly manifesting as dizziness, headache, transient limb numbness and weakness The main manifestations may include dizziness, headache, transient limb numbness and weakness, visual field loss, hemianopia, aphasia, hemiparesis, etc. 2.Hemorrhagic symptoms Usually, the onset of hemorrhagic smoker’s disease is relatively urgent because the compensated blood vessels are fragile, which can easily lead to rupture and bleeding when the blood flow increases, thus causing patients to have hemorrhagic symptoms, such as intraventricular hemorrhage and subarachnoid hemorrhage, etc. The situation is very critical, and the bleeding should be controlled through surgery in time and then targeted treatment after the situation is stabilized.