The cause of this condition include * Congenital (developmental defect) * Rupture of arterial aneurysm into an adjacent vein * Penetrating injuries * Inflammatory necrosis of adjacent vessels * Intentionally created (for example, Cimino<unk>  as vascular access for hemodialysis). Blood must be aspirated from the body of the patient, and since arteries are not easy to reach compared to the veins, blood may be aspirated from veins. The problem is that the walls of the veins are thin compared to those of the arteries. The AV<unk>  is the solution for this problem because, after 4-6 weeks, the walls of the veins become thicker due to the high arterial pressure. Thus, this vein can now tolerate needles during hemodialysis sessions. * Complication of catheter insertion rarely causes<unk> . It is usually caused by brachial artery puncture because brachial artery is located between two brachial veins.
Arteriovenous fistula
Dural ectasia
Dural arteriovenous fistula
Pseudoaneurysm
Developmental venous anomaly
Arterial insufficiency ulcer
Tuberculous gumma
Arteriovenous nicking