One of the most important factors in providing a well life quality in the patiens with chronic renal failure(CRF) to which haemodyalisis was applied, is the efficacy of the vascular Access path. The complications depending on Arteriovenous fistuls(AVF) may ocur in early or late periods. When the treatment for these complications is not performed at the right time and in an accurate manner, irreversible damages in AVF may ocur. ln our study, we have represented the case of rupture related to the venous aneurysm in the patient whose left brachial AVF was exposured two years ago.