Organ failure occurs when an organ in the body stops functioning properly, leading to a decline in overall health. This can happen to various organs, such as the heart, lungs, kidneys, or liver. When an organ fails, it can no longer perform its essential functions, which can result in serious health complications. The causes of organ failure can vary widely, including disease, injury, or infection. Symptoms may include fatigue, shortness of breath, swelling, and confusion, depending on the affected organ. Timely medical intervention is crucial to manage organ failure and prevent further complications.