DefinitionArterial embolism is a sudden interruption of blood flow to an organ or body part due to a clot (embolus).Causes, incidence, and risk factorsAn embolus is a blood clot or a piece of plaque that acts like a clot. Emboli means more than one clot. If the clot travels from the site where it formed to another location in the body, it is called an embolism.An arterial embolism may be caused by one or more clots. The clots can get stuck in an artery and block blood flow. The blockage starves tissues of blood and oxygen, which can result in damage or tissue death (necrosis).Arterial emboli often occur in the legs and feet. Some may occur in the brain, causing a stroke, or in the heart, causing a heart attack. Less common sites include the kidneys, intestines, and eyes.Atrial fibrillation