Objectives. To assess clinical features of cerebral aneurysms. Methods. The retrospective study was performed on a series of 568 consecutive patients, who admitted at the Viet-Due hospital from 1/2000 to 10/2011. Results. Mean age: 48,6. Female/male: 1/1.1, 89.1 percent cerebral aneurysms were discoved by ruptured with clinical presentations: 86.1 percent awful headache, 61.2 percent meningial syndrome
52.4 (1/0 conscious deterioration. Among these, 20.7 percent patients who were hospitalized early had obvious clinical manifestations and 27.5 percent patients hospitalized lately associated with complications of subarachnoid hemorrage. 7.3 percent ruptured aneurysms revealed obscure clinical features that made diagnosis difficult. The compression seems to be a cause of discovering aneurysms in 6.9 percent patients. In this group, third nerve compression 41 percent, optic nerve compression 28.2 percent. 1.1 percent patients were diagnosised on occasion of cerebral thrombosis. Otherwise, diagnosis of aneurysms was incidental. Conclusion: Rupture was the main manifestation of cerebral aneurysms. There were three prominent clinical presentations: awful headache, meningial syndrome and conscious deterioration. Other features of aneurysms was relatively rare.