Moya Moya disease is a rare disorder of the carotid arteries - the arteries that supply blood to the brain. Moya Moya disease (MMD) is a slowly progressive bilateral stenocclusive process of the distal internal carotid and proximal portions of the anterior and middle cerebral arteries and the formation of an abnormal vascular network at the base of the brain. All the symptoms of Moyamoya disease arise from reduced blood supply to the brain and/or rupture of the ‘Moyamoya vessels’. Reduced blood supply may cause stroke and rupture of the unhealthy Moyamoya vessels causes bleeding within the brain. The diagnosis of moyamoya is suggested by CT, MRI, or angiogram results. There is no cure for this disease. Drugs such as antiplatelet agents (including aspirin) are usually given to prevent clots, but surgery is usually recommended is Burr hole surgery.

Keywords: Moya Moya Disease; Symptoms; Prevention.