What are the symptoms of cerebral infarction?

Precursor of cerebral infarction: 1, transient amaurosis: it suddenly appears in front of the eyes and can recover after a few seconds, without nausea, vomiting, disturbance of consciousness and limb paralysis. 2, transient visual impairment: paroxysmal blurred vision or visual field defect, mostly recovered within one hour. 3, frequent yawning: This is due to the gradual aggravation of cerebral arteriosclerosis, narrowing of the lumen, and aggravation of cerebral ischemia and hypoxia. 4. Necking numbness: When the head turns to one side to shave, the fingers suddenly feel weak, the razor falls to the ground, and some people can't speak clearly. 1-2 minutes later. 6. The blood pressure of the elderly fluctuates violently or violently: headache, dizziness, tinnitus, mental stress or drowsiness.