there is no official diagnosis called "compulsive lying disorder" in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) or other widely accepted diagnostic manuals. However, there is a condition called "pathological lying," which is characterized by a chronic pattern of frequent and persistent lying that is not driven by external incentives or personal gain. Pathological lying is often considered a symptom or a feature of various underlying conditions rather than a standalone disorder.
Now, to answer your question, yes, it is possible for someone to have both pathological lying tendencies and antisocial personality disorder (ASPD). As individuals with ASPD often have a disregard for the truth and may engage in manipulative behaviors, they may also exhibit pathological lying. The lying behavior may serve various purposes for them, such as manipulating others, avoiding consequences, or enhancing their self-image.
It's essential to understand that the presence of one mental health condition does not exclude the possibility of having another. Comorbidity, where two or more mental health disorders coexist in one individual, is relatively common. In fact, some studies suggest that pathological lying tendencies are more prevalent in individuals with personality disorders, including ASPD.
If you suspect someone may have both pathological lying tendencies and ASPD, it is crucial for them to seek professional help from a mental health specialist who can conduct a thorough evaluation and develop an appropriate treatment plan. Addressing the underlying issues and providing appropriate interventions can be essential for improving their well-being and interpersonal relationships.