Few lacunar ischemic foci, i.e., small artery occlusive cerebral infarction, generally do not matter, accounting for 20% to 30% of all cerebral infarcts, have a better prognosis than other types of infarct foci, with lower mortality and disability rates. However, there is a high recurrence rate and active treatment is also required. Atherosclerosis of small arteries is the main cause of the disease, and the incidence increases with age. Patients mainly present with sensory and motor deficits, such as pure motor hemiparesis, pure sensory stroke, and ataxic mild hemiparesis. Treatment should include thrombolytic therapy, aspirin short-term combined with clopidogrel, and aggressive control of hypertension (antihypertensive therapy is effective in preventing stroke recurrence and cognitive decline). It is recommended that patients with lacunar ischemic foci go to the relevant departments of hospitals for timely consultation, and complete relevant examinations under the guidance of professional doctors, such as cranial CT or magnetic resonance in order to clarify the diagnosis of the disease and receive standardized treatment.