Conversion disorder, also known as functional neurological symptom disorder, is a condition where a person experiences physical symptoms that are not caused by any known medical condition or disease. These symptoms can be a wide range of physical problems, such as weakness, tremors, numbness, or seizures. The term "conversion" refers to the idea that emotional or psychological stressors can be "converted" into physical symptoms. In other words, when a person experiences emotional distress, it can manifest as physical symptoms that have no physical cause. While the symptoms of conversion disorder are real, they are not caused by a physical problem in the body. Instead, they are believed to be the result of the brain's response to stress or trauma. Treatment for conversion disorder may include therapy to address any underlying psychological issues, as well as techniques to help manage the physical symptoms.