Traumatic Brain Injury (TBI) occurs when an external force causes damage to the brain. This can happen due to events like falls, car accidents, or sports injuries. Symptoms may vary widely, ranging from mild concussions to severe brain damage, affecting cognitive functions, emotions, and physical abilities. Diagnosis typically involves medical imaging, such as CT scans or MRIs, to assess the extent of the injury. Treatment may include rest, medication, and rehabilitation therapies to help individuals recover and regain their skills. Early intervention is crucial for improving outcomes and minimizing long-term effects.