The early signs of carotid artery blockage are usually not visible for most persons. In the course of your health checkup, your medical doctor might detect an atypical sound named a bruit when listening to your pulse. This faint whistling seem is considered an early signal of carotid artery blockage. https://www.sgvascularctr.com/treating-carotid-artery-disease-an-overview-of-treatment-options-in-singapore/