Acute Respiratory Distress Syndrome (ARDS) is a severe, life-threatening lung condition characterized by widespread inflammation in the lungs. It leads to fluid accumulation in the alveoli, impairing gas exchange and causing severe hypoxemia. ARDS can be triggered by various direct or indirect lung injuries, such as sepsis, pneumonia, trauma, or aspiration. It requires critical care management, often including mechanical ventilation, to support respiratory function.