Hashimoto's Encephalopathy is a rare neurological condition associated with Hashimoto's thyroiditis, an autoimmune disorder that affects the thyroid gland. It is characterized by cognitive dysfunction, seizures, and mood changes, often leading to confusion and memory problems. The exact cause is not fully understood, but it is believed to involve an autoimmune response that affects the brain. Diagnosis typically involves blood tests to check for thyroid antibodies and imaging studies to rule out other conditions. Treatment often includes corticosteroids or other immunosuppressive therapies to reduce inflammation and manage symptoms. Early intervention can improve outcomes for affected individuals.