Back ground: WHO defines stroke as “the rapid development of clinical signs and symptoms of a focal neurological disturbance which lasts for more than 24 hours or leading to death with vascular origin as the cause. Stroke is a clinical syndrome, which describes a sudden neurological deficit of presumed vascular origin.The risk factors for stroke are diabetes mellitus, smoking, alcohol and hypertension. Colour doppler ultrasound is one of the important tool for the evaluation of exracranial insufficiency of the carotid arteries. This study was performed to assess the carotid arteries with the help of color doppler in carotid artery disease.