Infective endocarditis is a serious and potentially life-threatening infection of the inner lining of the heart chambers and heart valves. It is typically caused by bacteria entering the bloodstream and attaching to damaged areas of the heart, such as heart valves that have been weakened by conditions like heart disease or congenital heart defects. Symptoms of infective endocarditis can include fever, fatigue, shortness of breath, and changes in heart rhythm. Diagnosis is often based on a combination of medical history, physical examination, blood tests, and imaging studies. Treatment typically involves a combination of antibiotics and, in some cases, surgery to repair or replace damaged heart valves. Early detection and treatment are crucial for improving outcomes in patients with infective endocarditis.