Endocarditis is a serious medical condition characterized by the inflammation of the inner lining of the heart chambers and valves, known as the endocardium. This inflammation is typically caused by the presence of bacteria or other infectious agents in the bloodstream that reach the heart. Endocarditis can manifest acutely or develop over a more prolonged period, and its symptoms may include fever, fatigue, shortness of breath, and an overall feeling of malaise. Individuals with pre-existing heart conditions, such as congenital heart defects or artificial heart valves, are at a higher risk of developing endocarditis. Diagnosis often involves a combination of clinical evaluation, blood tests, and imaging studies. Prompt and accurate diagnosis is crucial, as untreated endocarditis can lead to severe complications, including heart valve damage, heart failure, and the formation of infected masses within the heart chambers called vegetations. Treatment typically involves a course of antibiotics, and in some cases, surgical intervention may be necessary to repair or replace damaged heart valves. Prevention is key, and individuals with risk factors may be advised to take prophylactic antibiotics before certain medical procedures to reduce the likelihood of bacterial entry into the bloodstream. Endocarditis requires careful medical management to mitigate its potentially life-threatening consequences and to preserve overall heart health.