Cerebral hemorrhage can be examined by CTA, which refers to CT arterial vascular imaging and is mainly used to observe the blood vessels in the brain for stenosis, occlusion, aneurysm and vascular malformation. Patients with cerebral hemorrhage need to clarify the cause of cerebral hemorrhage and evaluate vascular function. The most common cause is hypertension. Chronic long-term hypertension can lead to vitellogenic changes in small arteries, producing tiny aneurysms that rupture and bleed during violent fluctuations in blood pressure. Also less common are congenital aneurysms, arteriovenous malformations, and anomalous vascular network disease of the brain base. This is where CTA can help clarify the cause of the patient, whether it is a hypertensive cerebral hemorrhage or a cerebral hemorrhage caused by another specific cause. It can also make an assessment of vascular function, determine the patient’s prognosis, and predict the probability of recurrence of cerebrovascular disease in the future and the degree of functional recovery in the future.