Cerebral infarction is ischemic necrosis or softening of limited brain tissue due to impaired blood circulation, ischemia and hypoxia in the brain, and the clinical symptoms depend on the size and location of the infarct foci and blood supply vessels. The early stage of mild cerebral infarction can be asymptomatic due to good compensation of the collateral circulation, etc. If symptoms appear, they can be divided into two categories: (1) typical manifestations: cerebral infarction can start suddenly or progress slowly and worsen, and the main symptoms in the early stage are weakness of one limb, numbness of one limb, distorted mouth and tongue, slurred speech or incomprehension of others’ speech, etc. These symptoms are relatively common and can be recognized by the general public as occurring cerebral infarction has occurred. (2) Atypical manifestations: Some other patients show symptoms of dizziness, which can be a sense of spinning, or just a sense of dizziness, double shadows in vision, difficulty in swallowing or choking on water, or slanting to one side when walking, hitting the door frame, or pain in the side, or shaking of the limbs and other atypical manifestations, which are actually some special parts of cerebral infarction, and this type of infarction is atypical, but the condition is often more prone to change and should also be noted. Since the hyper-acute stage of cerebral infarction (usually within 4.5 hours) has the opportunity to perform special treatment such as intravenous thrombolysis, and the earlier the treatment, the better the effect, it is important to recognize the early symptoms of cerebral infarction in time so as to seek timely medical treatment and professional diagnosis and treatment.