The cause of BFRBs is unknown. Emotional variables may have a differential impact on the expression of BFRBs. Research has suggested that the urge to<unk>  self-injury is similar to a<unk>  but others have argued that for some the condition is more akin to a substance abuse disorder. Researchers are investigating a possible genetic component. Onset BFRBs most often begin in late childhood or in the early teens.
Body-focused repetitive behavior
Passive-aggressive behavior
Schizoid avoidant behavior
Compulsive talking
Callous and unemotional traits
Maladaptive daydreaming
Racing thoughts
Musical hallucinations