Pathological lying is a symptom of various personality disorders, including antisocial, narcissistic, and histrionic personality disorders. Other conditions, such as borderline personality disorder, may also lead to frequent lies, but the lies themselves are not considered pathological.

What does it mean when you compulsively lie?

Compulsive lying describes a condition in which a person tells falsehoods out of habit, sometimes for no reason at all. It is also known as pathological lying, mythomania, and habitual lying.

Is compulsive lying a mental disorder?

Pathological lying, also known as mythomania and pseudologia fantastica, is a mental disorder in which the person habitually or compulsively lies.