We discussed the clinical features and psychotherapy process of a female patient with psychogenic halitosis, and the following points were concluded:
1) the existence of a psychogenic factor along an organic basis for halitosis in this patient.
2) diagnosis of borderline personality organization as manifested especially through a temporary but obvious decrease in reality orientation.
3) no major acting-out was observed during the therapy period due to a firm therapy structure and supportive psychotherapy aiming only at the level of social adaptation without touching deeper personality layers.
