There is no single, well-established treatment protocol for pathological lying. The condition still lacks a formal entry in the major diagnostic manuals, which means there is no standardized clinical pathway the way there would be for depression or anxiety. What does exist is a growing body of research pointing toward psychotherapy as the primary approach, typically focused on the underlying psychological patterns, co-occurring mental health conditions, and the compulsive quality the lying often takes on. The gap between how disruptive pathological lying can be and how little formal guidance clinicians have for treating it is one of the more frustrating corners of psychiatry.
Why There Is No Standard Treatment
The most fundamental obstacle is that pathological lying is not listed as its own disorder in either the DSM (the diagnostic manual used in the United States) or the ICD (the international equivalent). Without a formal diagnostic category, there are no insurance billing codes specific to it, no treatment guidelines issued by professional organizations, and very limited funding for clinical trials. One psychiatric review put it plainly: pathological lying still lacks any strong professional consensus, clear etiology, treatment options, or prognoses.1PubMed Central. Psychiatric aspects of normal and pathological lying
That said, there is growing momentum to change this. A survey of psychotherapists found that most endorsed the idea of including pathological lying in diagnostic systems like the DSM and ICD, reasoning that formal recognition would allow for more accurate diagnosis and more effective treatments.2PubMed. Pathological Lying: Psychotherapists’ Experiences and Ability to Diagnose Separate research has argued that the accumulated evidence supports establishing pathological lying as a distinct diagnostic entity, with a proposed definition and recommendations for future study.3PubMed Central. Pathological Lying: Theoretical and Empirical Support for a Diagnostic Entity Until that happens, though, treatment remains ad hoc, shaped by whatever individual clinicians decide to try.
What Makes Pathological Lying Different from Ordinary Dishonesty
Everyone lies sometimes. What distinguishes pathological lying is its frequency, its apparent compulsiveness, and the damage it causes. Clinicians who have worked with pathological liars describe patients who lie with great frequency and whose lying causes marked distress and impaired functioning across social, occupational, financial, and legal domains. The behavior typically begins during adolescence and continues for five years or more before the person encounters clinical attention.4PubMed. Pathological Lying: Psychotherapists’ Experiences and Ability to Diagnose
A key feature is the sense that the lying is beyond voluntary control. In one study comparing people who identified as pathological liars with non-pathological liars, the pathological lying group reported significantly higher agreement that their lying was out of their control. They also reported feeling less anxious after lying, lying for no apparent reason more often, and experiencing their lies growing from an initial lie into something larger.5PubMed Central. Pathological Lying: Theoretical and Empirical Support for a Diagnostic Entity That snowball effect, where a single fabrication spawns increasingly elaborate stories, is something clinicians and patients both recognize. It also helps explain why willpower alone rarely stops the behavior: the person often does not experience a conscious decision point before each lie.
The motives vary. A systematic review of reported cases found that the most common drivers were self-aggrandizing (about 38%), attention-seeking (about 36%), and sick-role assumption (about 29%).6PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities Some people fabricate impressive backgrounds, others invent crises to elicit sympathy, and others feign illnesses. Knowing which motive is at play matters for treatment, because it points toward different underlying psychological needs.
Psychotherapy as the Primary Treatment
Because there is no approved medication for pathological lying and no manualized treatment protocol, psychotherapy is the main avenue clinicians turn to. The most commonly discussed approaches fall into a few broad camps.
Cognitive behavioral therapy (CBT) is frequently mentioned as a starting point. The logic is that if lying has become an automatic response to certain triggers, the person can learn to identify those triggers, catch themselves before the lie comes out, and replace the behavior with more honest alternatives. CBT also helps address the distorted thinking patterns that often accompany chronic lying, like the belief that honesty will lead to catastrophic rejection.
Psychodynamic or insight-oriented therapy aims deeper, trying to understand the emotional needs the lying serves. If someone lies compulsively to appear more successful or interesting, the therapist might work on the underlying shame or insecurity that makes the truth feel intolerable. This approach tends to be longer-term and less structured than CBT, but it may be better suited for cases where the lying is deeply tied to identity and self-worth.
A practical challenge that clinicians face is that the lying itself can contaminate the therapeutic relationship. Therapists who have worked with pathological liars report difficulty knowing what is true within sessions, which undermines the trust that therapy depends on. Most practitioners in one survey reported clinical experience with patients who lie pathologically, though such patients made up a small proportion of their caseloads, and the therapists often ended up offering a diagnosis other than pathological lying, typically a personality disorder.7PubMed. Pathological Lying: Psychotherapists’ Experiences and Ability to Diagnose This substitution is partly pragmatic, since personality disorders have established treatment frameworks, and partly because many pathological liars do meet criteria for a personality disorder.
The Role of Co-Occurring Conditions
Pathological lying rarely shows up in isolation. When it does appear, it tends to travel alongside other psychiatric conditions, and treating those conditions is often the most concrete thing a clinician can do. A systematic review of 55 reported cases found that about 27% had a concurrent personality disorder, with the vast majority of those exhibiting Cluster B traits, which includes borderline, narcissistic, histrionic, and antisocial personality disorders.8PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities Cluster B disorders are characterized by dramatic, emotional, or erratic behavior, and chronic dishonesty fits naturally into several of them.
When the lying co-occurs with borderline personality disorder, for instance, dialectical behavior therapy (DBT) gives clinicians a structured framework that includes impulse control, emotional regulation, and interpersonal effectiveness, all of which can help reduce lying behavior indirectly. When antisocial personality disorder is present, the therapeutic options are more limited, since these patients are often less motivated to change. But even in those cases, structured programs that emphasize accountability and concrete behavioral goals have shown some traction.
The real-world consequences of the lying are severe enough to merit attention on their own. The same review found that roughly 47% of pathological lying cases involved unemployment or decreased work ability, and about 44% faced legal issues or similar consequences.9PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities Treatment that addresses the lying without addressing the wreckage it leaves, the lost jobs, the strained relationships, the legal entanglements, is incomplete. Many clinicians incorporate case management or practical problem-solving alongside the psychological work.
What the Brain Looks Like
There is some neurobiological evidence that pathological liars may have structural brain differences. A brain imaging study comparing pathological liars to both antisocial and normal controls found that the liars showed a roughly 22 to 36% increase in white matter in several prefrontal brain regions compared with both control groups.10PubMed Central. Localisation of increased prefrontal white matter in pathological liars They also showed a 36 to 42% reduction in the ratio of gray matter to white matter in prefrontal areas.11PubMed. Prefrontal white matter in pathological liars
White matter is the brain’s wiring, the connections between regions. More wiring in the prefrontal cortex could theoretically make it easier for someone to generate complex fabrications on the fly, connecting disparate pieces of information more fluently. The reduced gray-to-white ratio suggests an unusual structural profile rather than a simple “more brain.” This is a single small study, and it does not tell us whether these differences cause the lying or develop as a result of years of practice. But it does suggest that pathological lying is not purely a moral failing: something about the brain’s architecture may predispose certain people to it, which has implications for how we think about treatment. A condition rooted partly in brain structure may require more than talk therapy alone, and it may explain why some people find it genuinely difficult to stop even when they want to.
Executive Functioning and Adolescent Onset
A separate line of research has looked at cognitive functioning in young people who lie pathologically. One study examining adolescents found evidence of pathological lying in a subset of participants who were telling an average of about 10 lies per day, with impaired functioning, greater distress, and increased exposure to danger. These adolescents showed clinically elevated problems in executive functioning, particularly in attention, working memory, and impulse control.12Journal of Psychopathology and Behavioral Assessment. Executive Functioning and Pathological Lying in Adolescence: Examining Prevalence and Etiology
Executive functioning is the set of mental abilities that help you plan, focus attention, remember instructions, and juggle multiple tasks. Deficits in these areas could contribute to lying in a few ways: poor impulse control makes it harder to pause before fabricating, and weak working memory may make it difficult to keep track of which stories are real and which are invented. For treatment, this finding suggests that interventions aimed at strengthening executive skills, the kinds of strategies already used for ADHD and similar conditions, might have a role in managing pathological lying in younger people. If the behavior can be caught and addressed during adolescence, when the brain is still developing, the window for change is presumably wider.
Childhood Adversity and Developmental Roots
The reasons someone starts lying compulsively often trace back to early life. Research suggests that childhood trauma, neglect, and abuse play a significant role in shaping pathological lying behavior.13European Psychiatry. On the Pathophysiology of Pathological Lying: A Case Report and Literature Review A study examining the link between adverse childhood experiences and deception found that participants who reported more childhood adversity also reported telling more lies. The connection was strongest for experiences of child maltreatment and peer victimization.14PLoS ONE. From vulnerability to duplicity: Examining the connection between childhood adversity and deception
This makes intuitive sense. A child growing up in an unpredictable or threatening environment may learn that lying is a survival skill: fabricating stories to avoid punishment, inventing a more palatable version of home life for peers, or creating fictional scenarios in which they have more control. Over time, what started as a coping strategy becomes automatic. Effective treatment for these individuals often needs to address the underlying trauma, not just the lying behavior itself. Trauma-focused therapies can help the person process the original experiences and develop healthier coping mechanisms, reducing the emotional pressure that fuels the lying.
Is Medication Part of the Picture?
There is no medication approved for pathological lying, and no strong evidence base for any particular drug targeting the behavior directly. When medication helps, it is almost always because it treats a co-occurring condition. If someone’s pathological lying is intertwined with depression, an antidepressant may reduce the emotional distress driving the behavior. If impulsivity is a major factor and the person also meets criteria for ADHD, a stimulant or non-stimulant ADHD medication might improve impulse control enough to create a window where therapy can gain traction. Mood stabilizers have been tried in cases where the lying accompanies bipolar features or severe emotional dysregulation.
The honest state of affairs is that pharmacotherapy for pathological lying remains entirely empirical, driven by individual clinician judgment rather than clinical trial data. No randomized controlled trials have tested whether any medication reduces pathological lying specifically. This is a direct consequence of the condition’s absence from diagnostic manuals: without a formal diagnosis, it is nearly impossible to run the kind of structured drug trials that would build an evidence base.
Assessment and Screening Tools
One barrier to treatment has always been the difficulty of reliably identifying pathological lying. People who lie pathologically are, by definition, unreliable reporters of their own behavior. Clinicians have historically relied on collateral information from family members, partners, or employers, and on their own clinical judgment. Recently, researchers have developed a more standardized tool. The Pathological Lying Inventory (PLI) is a 19-item questionnaire validated against measures of lying frequency, psychological distress, social dysfunction, and negative life outcomes. Testing showed the PLI has strong reliability over a two-week period, and its scores correlated with frequent, pervasive, and chronic lying patterns.15Current Psychology. Development and validation of the pathological lying inventory
A standardized screening tool like this could make a real difference for treatment. Right now, a therapist who suspects pathological lying has no quick way to quantify the severity or track whether it is improving over time. The PLI is not a diagnostic instrument, since there is no official diagnosis to confirm, but it gives clinicians a way to measure the behavior systematically, which is a prerequisite for evaluating whether any treatment is working.
When Pathological Lying Enters the Legal System
Treatment considerations become more complicated when pathological lying intersects with legal proceedings. In forensic settings, the condition can significantly complicate the evaluation of a defendant’s capacity to stand trial and, in some jurisdictions, criminal responsibility.16PubMed. Implications of Pseudologia Fantastica in Criminal Forensic Evaluations: A Review and Case Report The central problem is that competency evaluations depend on a defendant’s ability to rationally consult with their attorney. If the defendant cannot reliably distinguish their own fabrications from reality, or if they compulsively provide false information to their legal team, the evaluation becomes almost impossible to conduct in good faith.
About 44% of pathological lying cases in the systematic review faced legal consequences of some kind.17PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities For these individuals, court-mandated treatment is sometimes part of a legal resolution. The effectiveness of mandated treatment in these cases is an open question, since compulsory engagement with therapy can undermine the voluntary motivation that makes therapy productive, and pathological liars who are also facing criminal charges have strong incentives to lie about whether they are improving.
What a Realistic Treatment Path Looks Like
If you or someone you care about is dealing with pathological lying, here is what a practical treatment path tends to involve. The first step is a thorough psychiatric evaluation to identify any co-occurring conditions. Since pathological lying so often accompanies personality disorders, mood disorders, or trauma-related conditions, finding and treating those gives clinicians their best foothold.
From there, individual psychotherapy forms the core of treatment. The specific approach depends on the underlying dynamics: CBT for behavioral patterns and distorted thinking, psychodynamic therapy for deeper identity and self-worth issues, DBT when emotional dysregulation is central, or trauma-focused approaches when childhood adversity is the root. Some clinicians combine elements of multiple approaches.
There is one uncomfortable truth worth acknowledging: a meaningful percentage of pathological liars eventually admit or confess to their lying patterns. The systematic review found that about 36% of cases admitted or confessed to their fabrication tendencies, while about 27% modified their stories or deflected to an alternative account when confronted.18PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities This means that even with the compulsive quality, many people with this condition retain some awareness that their behavior is problematic. That awareness, when it surfaces, is the opening that therapy needs. Treatment works best when the person genuinely wants to stop, recognizes the damage the lying has caused, and can tolerate the vulnerability that honesty demands. For the roughly two-thirds who do not readily confess, the road is significantly harder, and outcomes remain uncertain.
Who These Patients Tend to Be
The demographics of pathological lying shape who ends up seeking treatment. Among reported cases, about 73% were men and 27% were women, with an average age around 35 years. Ages ranged from 14 to 68, and about half of cases presented to medical institutions between the ages of 20 and 40.19PubMed Central. Pseudologia fantastica: a systematic review of sociodemographic features and psychiatric comorbidities The male predominance may reflect genuine differences in prevalence, or it may reflect biases in who gets identified and studied. Women who lie pathologically might present differently or be diagnosed with other conditions instead.
The gap between adolescent onset and presentation in the 20s and 30s is worth noting. It suggests that most people live with the behavior for years or even decades before getting any clinical attention. By the time they arrive in a therapist’s office, the lying pattern is deeply entrenched, relationships have been damaged or destroyed, and careers have suffered. Earlier identification, perhaps through school counselors or pediatric mental health screenings, could theoretically improve outcomes by catching the behavior before it becomes so firmly wired in. The adolescent research on executive functioning deficits supports this idea, suggesting that targeted interventions during the teenage years could have a preventive effect.