Cerebral infarction is the name of the disease, and most of them are caused by the narrowing and occlusion of blood vessels after atherosclerosis, and the local ischemia and necrosis of brain tissues after the dislodgement of blood clots, and this ischemic and necrotic lesion is called cerebral infarction foci. Infarct foci can be new foci in the acute stage or old softening foci, which can be distinguished by magnetic resonance examination or by the comparison of cranial CT imaging before and after. The symptoms that appear after a cerebral infarction and the degree of recovery that can be achieved later depend mainly on the specific location of the cerebral infarction lesion and the size of the cerebral infarction lesion. If the infarct lesion is relatively small or no longer in an important functional area, the patient will recover relatively well in the future; if the infarct lesion is large or located in an important functional area, it may affect the corresponding language, limb and other functional impairments.