Lacunar stroke, with diameters ranging from 2mm to 15mm, may appear minor in scale but results from long-term arteriosclerosis of cerebral blood vessels, leading to ischemia and necrosis in surrounding tissues. Clinically, symptoms can manifest as pure sensory, pure motor, mixed-type numbness in limbs, among other symptoms. Symptoms are generally mild and recovery is likely; however, long-term oral antiplatelet medications like aspirin are required. Additionally, stabilizing plaques with statins in combination with other drugs is essential. It's also important to maintain a low-salt, low-fat diet, and manage conditions like hypertension and diabetes. Therefore, its severity is relatively mild compared to extensive strokes.