The initial symptoms of cerebral infarction are directly related to the ischemic blood vessels. In the case of anterior circulation cerebral infarction, the patient’s initial symptoms are slight numbness and weakness of one limb, which may also be accompanied by dizziness and headache. As the condition progresses and worsens, the patient may experience severe headache, dizziness, aphasia or hemiparesis of the limb, and some patients may also experience seizures and impaired consciousness. In posterior circulation cerebral infarction, the patient’s initial symptoms are dizziness, episodic visual rotation, visual field loss, visual parallax, cerebellar chanting-like language, walking obliquely, difficulty standing, difficulty swallowing, and hoarseness of voice. As the disease progresses and worsens, the patient’s clinical symptoms can also worsen, and in severe cases, it can lead to damage to the superior brainstem reticular activation system, and the patient may also develop impaired consciousness. For patients with cerebral infarction who have symptoms of neurological deficits, it is recommended to consult a hospital immediately. After active thrombolytic treatment, the symptoms of neurological deficits can be significantly reduced in some patients.