The difference between cerebral infarction and cerebral hemorrhage on brain CT is that the acute phase of cerebral infarction can be visualized after 24 hours, usually as a low-density, irregular image, and as the condition of cerebral infarction changes, the low-density impact can develop into a softening foci. For cerebral hemorrhage, the presentation on brain CT is a high-density shadow, which can be a basal ganglia hemorrhage or a lobar hemorrhage, and CT can also provide a preliminary estimate of the amount of hemorrhage, which can become a softening foci after the absorption of cerebral hemorrhage. Both cerebral infarction and cerebral hemorrhage are cerebrovascular diseases, but there are differences in their treatment plans. For cerebral hemorrhage, the main treatment is to dehydrate and lower cranial pressure, and if necessary, surgery can be performed.