”The term “lacunar infarction” refers to the ischemic microinfarction of brain tissue caused by the occlusion of tiny atherosclerosis of 0.1-0.2 mm in diameter in the brain, and the lumen formed by the liquefaction of the ischemic infarcted brain tissue and its removal by macrophages. These luminal infarcts are as small as 0.2 mm and as large as 15-20 mm, with most being 3-6 mm. ”Because of the small infarct area, the clinical symptoms are often mild, such as numbness and weakness of one side of the face and limbs, slurred speech, headache, dizziness, etc. Some patients have no self-perceived discomfort and are only detected during imaging examinations. With the widespread use of CT, especially MRI, some subclinical lesions that were not easily detected in the past have been revealed. When CT or MRI indicates “luminal infarction”, they think they have had a stroke and are highly nervous, asking doctors to prescribe various blood-boosting drugs and hospitalization drips, thinking that this will unblock the blood vessels and make the lesions disappear. In fact, this practice is not necessary, because the formed infarct foci will not disappear. Generally speaking, most patients with “luminal infarction” have a good prognosis and low disability rate, and can work and live daily. What needs more attention is whether they have hypertension, diabetes, hyperlipidemia, atherosclerosis and other disorders and bad habits of smoking and alcohol. Because they are the key to the attack and recurrence of lacunar infarction. It is important to note that “lacunar infarction” is prone to recurrence, and the accumulation of small lesions may have more serious consequences when they accumulate to a certain number and extent. The use of anticoagulants such as aspirin and disulfiram, under the guidance of a doctor, can help to reduce recurrence.