Cerebral infarction refers to cerebral infarction or cerebral infarction, which is one of the most common ischemic cerebrovascular accidents and has a clear causal relationship with increased blood glucose. Most elevated blood glucose is caused by diabetes mellitus, including type 1 and type 2 diabetes mellitus. If the underlying metabolic disease is not effectively controlled for a long time, it will lead to more and more serious cerebral atherosclerosis, which will eventually form cerebral arterial plaques, and then cause cerebral vascular occlusion, and cerebral infarction will occur. Therefore, once the discovery of increased blood glucose should be actively looking for the cause, if you can confirm the diagnosis of diabetes mellitus, the need for strict control of blood glucose, otherwise it will lead to the cerebral blood vessels and the cardiovascular system continues to harden, and ultimately the occurrence of cerebrovascular accidents.