Recurrent myocardial infarction (RMI) is defined as the occurrence of a new myocardial infarction in a patient with a previous history of myocardial infarction. Despite significant advances in cardiology, recurrent MI remains a major contributor to cardiovascular morbidity and mortality worldwide. This thesis provides a comprehensive overview of recurrent myocardial infarction, including its epidemiology, pathophysiology, clinical features, diagnostic approach, management strategies, prevention, and prognosis. Emphasis is placed on secondary prevention and evidence-based clinical guidelines.