Functional neurological disorder (FND) is a problem with how the brain receives and sends information to the rest of the body. It is not caused by structural damage to the brain, but rather by an abnormality in how the brain functions. FND can encompass a wide variety of neurological symptoms, such as limb weakness, seizures, and problems with movement, memory, and speech. FND is considered a condition at the intersection of neurology and psychiatry, also known as a ‘neuropsychiatric’ disorder. There are no specific tests to confirm FND, and it is diagnosed based on a physical examination or a detailed description of the events. FND can be difficult to understand and diagnose, but early diagnosis and treatment can help lessen symptoms and aid in healing.