Iatrogenic

undefined:

-A system was made by other people convincing them they were a system. They weren't a system previously but after people started telling them they were they believed them which led to them actually forming a system.

-A system formed through therapy. This could be through internal family systems therapy, their therapist convincing them they're a system and them believing them or if they were abused in therapy and had to form a system to deal with it.

-A reclamation of a term they've had used against them.