When someone is diagnosed with both bi-polar and borderline personality disorders and exhibits manic rage or anger accompanied by paranoia or hallucinations, she may suffer from tri-polar disorder. Tri-polar is not recognized in the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition.
According to licensed therapist Linda Powers, tri-polar disorder manifests by the interaction of borderline personality disorder and bipolar personality disorder. A small stimulus triggers a tri-polar episode. The sufferer cycles through three poles of tri-polar disorder: over stimulation, disconnect and anger. Over stimulation is manic behavior, disconnect is deep dissatisfaction with her external life, and anger is consistent rage towards others. The person needs immediate medical attention before she sinks into severe depression.