Conversion disorder is a neurological/psychiatric disorder. It is one of a group of psychological disorders called somatoform disorders.

Conversion disorder can be difficult to diagnose, but it is treatable.

The direct cause of conversion disorder is usually experiencing a very stressful or traumatic event. The disorder can be considered the way someone copes, or as a psychological expression of the event. An example of this is a person who loses his voice following a situation in which he was afraid to speak.