Lacunar stroke is a condition where small blood vessels in the cerebral hemispheres or brainstem undergo pathological changes and eventually become occluded as a result of common risk factors such as prolonged hypertension or diabetes. This leads to the necrosis of brain tissue. Typically, the infarct size is less than 1.5 to 2 centimeters, resulting in clinical syndromes associated with impaired neurological functions governed by the affected area. Often, lacunar strokes may be asymptomatic in some patients, while others may experience mild symptoms. Generally, the prognosis of this disease is good.