Arteriovenous malformation (AVM) is a medical condition in which an abnormal connection between arteries and veins forms in the brain, spinal cord, or other parts of the body. Synonyms for AVM include arteriovenous fistula, arteriovenous shunt, and high-flow vascular malformation. In some cases, AVM can lead to bleeding, stroke, seizures, and other serious health problems. Treatment for AVM may involve surgery, embolization, or radiation therapy, depending on the location and severity of the malformation. Early diagnosis and timely intervention can improve outcomes and reduce the risk of complications associated with this condition.