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目的：总结无症状性脑梗死的临床特点及主要危险因素。方法：对４０例患者的临床表现（一般情况、ＣＴ表现、血压、血糖、血脂、血流动力学）进行统计分析。结果：无症状性脑梗死多发生于老年人，绝大多数为腔隙性脑梗死，发生部位多位于放射冠、内囊、基底节区。高血压、脑动脉硬化是其主要病因。结论：针对其危险因素积极开展二级预防，可防止其发生及发展成血管性痴呆及假性球麻痹。
Objective: To summarize the clinical features and main risk factors of asymptomatic cerebral infarction. Methods: The clinical manifestations (general, CT, blood pressure, blood glucose, blood lipid, hemodynamics) in 40 patients were analyzed statistically. Results: Asymptomatic cerebral infarction occurred in the elderly, the vast majority of lacunar infarction, the site of occurrence in the coronal, internal capsule, basal ganglia. Hypertension, cerebral arteriosclerosis is its main cause. Conclusion: Secondary prevention against its risk factors can prevent its occurrence and development into vascular dementia and pseudobulbar palsy.