The incidence of diabetes is very high, and is also a very important disease affecting the health of the elderly population, diabetes can cause complications such as brain infarction, diabetes causes brain infarction for the following reasons: 1, diabetes to the late stage can cause damage to blood vessels, whether large blood vessels, or microvascular, damage to the eyes, kidneys, brain, heart; 2, diabetes patients themselves are in a state of hypercoagulation, easy to form blood clots; 3 If the blood glucose is not well controlled, the inflammatory factors cause damage to the endothelium, which is also prone to brain infarction; 4. If the blood glucose is not controlled or there are risk factors without antiplatelet therapy, brain infarction is prone to occur. Therefore, it is recommended that people over 50 years old or patients with risk factors need to undergo antiplatelet therapy without contraindications, otherwise, it may cause brain infarction.