分析７５例无症状性脑梗塞，发现高血压、年龄增长是其主要的危险因素。其中以腔隙性梗塞为最多见。其病灶小，多位于脑血管的深穿支供血区，如基底节及侧脑室周。高血压性微血管病是腔隙性无症状性脑梗塞的主要原因。无症状性脑梗塞之所以无症状，与梗塞灶位于脑的静区或非优势侧半球，梗塞造成的损伤程度缓慢发展而产生了代偿机制有关 Analysis of 75 cases of asymptomatic cerebral infarction, found that hypertension, age is the main risk factor. Among them, lacunar infarction is the most common. The lesion is small, mostly located in the blood vessels of deep perforating branch area, such as basal ganglia and lateral ventricle weeks. Hypertensive microangiopathy is the leading cause of lacunar asymptomatic cerebral infarction. The reason why asymptomatic cerebral infarction is asymptomatic, and the infarction is located in the brain of the quiet zone or the non-dominant side of the hemisphere, the extent of the damage caused by the infarction slowly developed compensatory mechanism