Intracerebral hemorrhage is the most serious complication of cerebral arteriovenous malformations (AVM). To identify angiographic characteristics of AVM which correlate with a history of hemorrhage, we retrospectively anlayzed angiographic findings of 25 patients with AVM. Nine characteristics were evaluated ; these include nidus size, location, arterial aneurysm, ingiomatious change, venous drainage pattern, venous stenosis, delayed drainage and venous ectasia. These characteristics were correlated with hemorrhage, which was seen in 18(72%) patients on CT or MR images. Venous stenosis (p<0.5) and delaved venous drainage (p<.05) well correlated with a history of hemorrhage. Arterial aneursm and intraidal aneurysm also had a tendency hemorrhage although they did not prove to be statistically significant. Detailed analysis of angiographic finding of AVM is important for recognition of characteristics which are related to hemorrhage and may contribute to establishing a prognosis and treatment planning.