Cerebral infarction and cerebral thrombosis belong to the same concept, are ischemic cerebrovascular disease, the two pathogenesis is different, the severity is more difficult to compare, but the same conditions, the general cerebral thrombosis is heavier. 1. Under the same condition: cerebral thrombosis is mostly caused by dislodged plaque or cardiogenic thrombus blocking cerebral blood vessels, acute cerebral ischemic disease. The onset is faster, the clinical symptoms are more urgent, more serious, and cerebral infarction is relatively slow onset of embolism. 2. Under different conditions, the severity of the two is not comparable, mainly with the size of the embolus or infarction foci, blockage of the vascular site, such as large embolus blockage of large blood vessels and cavernous cerebral infarction compared to large embolus blockage of large blood vessels can cause more serious conditions. Cerebral infarction and cerebral thrombosis are both critical illnesses. If the patient has consciousness disorder, limb dysfunction, unfavorable speech, dizziness and headache, it is recommended to consult the doctor in time, so as to avoid endangering the patient’s life.