Delirium is an acute, fluctuating disturbance in attention and cognition, typically triggered by medical conditions, substance use, or physiological imbalances. It is linked to increased morbidity, prolonged hospital stays, and higher mortality. Effective management is essential to prevent complications and long-term consequences, and it requires a multidisciplinary approach. Treatment focuses on identifying and correcting underlying causes—such as infections or dehydration—while providing supportive care, frequent reorientation, and maintaining adequate hydration and sleep. Antipsychotic medications may be used to manage severe agitation.