Mild cerebral infarction clinically mainly refers to lacunar cerebral infarction, which may have no clinical symptoms, and may also manifest as pure motor hemiparesis and pure sensory stroke, as well as ataxic hemiparesis, and clumsiness of the hand – dysarthria syndrome and so on. 1. Pure motor hemiplegia: sudden weakness of one side of the limb, basically not accompanied by hemiplegia. 2. Pure sensory stroke: sudden onset of abnormal or reduced sensation in one limb, basically not accompanied by motor impairment. 3. Ataxic mild hemiparesis: patients may suddenly develop mild hemiparesis with mainly lower limb dyskinesia, often accompanied by obvious ataxic symptoms on the same limb. 4. Clumsy hand – dysarthria syndrome: patients may suddenly develop dysarthria, unclear spitting, mild swallowing dysfunction, mild paralysis of facial and tongue muscles on one side of the face, upper limb activities are not as flexible as usual but without obvious limb paralysis, fine motor movements such as writing are often difficult, inability to accurately touch the nose, and unsteady walking gait. If you have any discomfort symptoms, you should go to the hospital as soon as possible, and the doctor will formulate individualized diagnosis and treatment plan according to the specific condition, so as to avoid delaying the condition.