Cardiac embolism occurs when a blood clot or other debris forms in the heart and travels through the bloodstream, potentially blocking blood flow in other parts of the body. This can lead to serious complications, such as a stroke or organ damage, depending on where the blockage occurs. The most common cause of cardiac embolism is atrial fibrillation, a condition where the heart beats irregularly, increasing the risk of clot formation. Other causes can include heart valve disease and myocardial infarction (heart attack). Prompt diagnosis and treatment are essential to prevent severe outcomes.