Pathological lying can change, but it requires the person to want to change and usually needs professional help
Pathological lying—compulsive dishonesty that happens without an obvious external reward—is not a fixed trait. People with this pattern can learn to tell the truth more often and build honesty into their relationships. The change is not automatic or quick, and it does not happen without effort, but research on behavior change and therapy outcomes shows it is possible.
The key difference between pathological lying and other dishonesty is that the liar often gains nothing concrete from the lie. A person might lie about where they went, what they ate, or what they think, even when the truth would serve them better. This pattern usually signals something else going on—anxiety, a need to feel in control, shame, or a learned habit from childhood—and addressing that underlying cause is what makes change stick.
Key Takeaways
- Pathological lying stems from emotional needs or learned patterns, not from a character flaw that cannot be fixed, and addressing the root cause is what allows someone to change.
- The person who lies must recognize the pattern themselves and want to change; change imposed from outside rarely lasts.
- Therapy—particularly cognitive behavioral therapy or trauma-informed approaches—gives people tools to manage the anxiety or shame that drives the lying.
- Change happens gradually through practice, setbacks, and building new habits; expecting perfection or overnight transformation sets both the person and their relationships up for failure.
- People in relationships with someone who lies pathologically should set boundaries about what they will tolerate while the person works on change.
Why pathological lying happens in the first place
Pathological lying usually grows from something specific, not from moral weakness. Common roots include childhood experiences where lying was the safest response to an unpredictable or punishing parent, anxiety that makes the truth feel dangerous, shame that makes the person want to hide who they really are, or a need to feel powerful or in control when life feels chaotic.
Some people lie to avoid disappointing others or to manage how others see them. Others lie because they learned early that the truth brought punishment, so dishonesty became automatic. Still others use lying as a way to soothe anxiety in the moment—the lie feels safer than the vulnerability of honesty, even though it creates bigger problems later.
Understanding the root does not excuse the lying, but it does point toward what needs to change. A person who lies because they are terrified of judgment needs to learn that some people can handle the truth. A person who lies because they learned it from a parent needs to practice new patterns. A person who lies to manage anxiety needs tools to tolerate discomfort without reaching for dishonesty.
What therapy can do to interrupt the pattern
Cognitive behavioral therapy (CBT) is one of the most direct approaches. It works by helping the person notice the moment before they lie—the anxiety spike, the shame, the urge to control—and choose a different response. A therapist teaches the person to pause, name what they are feeling, and decide whether the lie is actually solving the problem or just delaying it.
Trauma-informed therapy helps when the lying grew from childhood experiences. The therapist helps the person understand why lying felt necessary then and why it no longer serves them. Over time, the person can separate the past from the present and choose honesty even when it feels risky.
Therapy also addresses the shame that often fuels pathological lying. Many people who lie compulsively feel deep shame about who they are, and they lie to hide that shame. A therapist can help them separate their worth as a person from their mistakes and build self-compassion. When shame decreases, the need to lie often decreases with it.
The person has to do the work between sessions—noticing when they lie, writing down what they were feeling beforehand, practicing telling small truths even when it is uncomfortable. Change happens through repetition, not through insight alone.
How long change takes and what it looks like
Change in lying patterns is not linear. A person might go weeks being honest, then have a day where they lie repeatedly. They might lie about small things while staying honest about big ones, or vice versa. Progress looks like the lies becoming less frequent, the person catching themselves sooner, and the person feeling less compelled to lie even when it would be easier.
Most people who commit to therapy see noticeable shifts within a few months, but building a stable pattern of honesty usually takes longer—often a year or more. The timeline depends on how long the person has been lying, how deep the underlying anxiety or shame runs, and how much support they have in their life.
Real change also means tolerating the consequences of honesty. When someone stops lying, people in their life may not when ready trust them again. Relationships may take time to repair. The person has to stay honest even when honesty brings short-term discomfort, because that is how trust rebuilds.
What makes change fail
Change fails most often when the person does not actually want to change. If someone is in therapy because a partner or family member demanded it, but they do not see the lying as a problem, they will not do the work. They may go through the motions, but they will not practice new habits or sit with the discomfort that honesty requires.
Change also fails when the person expects to be perfect. They lie once and decide they are hopeless, so they stop trying. Or they expect others to when ready trust them again, and when that does not happen, they feel punished and return to lying. Realistic expectations—that change is gradual, that setbacks happen, that rebuilding trust takes time—are essential.
Sometimes change fails because the underlying cause was not addressed. A person might stop lying about one thing but start lying about another. Or they might manage the lying for a while, then relapse when stress increases. This is why working with a therapist matters; a therapist can help identify what is actually driving the lying and make sure the treatment addresses that, not just the symptom.
What people in relationships with pathological liars should do
If you are in a relationship with someone who lies pathologically, you cannot force them to change. You can set boundaries about what you will tolerate—"I will not stay in this relationship if the lying continues" or "I need you to be in therapy for this to work"—but the person has to choose to do the work.
While they are working on change, protect yourself. Verify important information. Do not make major decisions based on what they tell you. Do not accept repeated apologies without seeing actual behavior change over time. Boundaries are not punishment; they are how you take care of yourself while someone else is learning to be honest.
If the person is not in therapy or is not making progress after a reasonable amount of time, you have the right to decide the relationship is not working for you. Supporting someone through change is different from staying in a situation that harms you. Both things can be true.
When pathological lying is connected to other conditions
Pathological lying sometimes appears alongside other mental health conditions—anxiety disorders, depression, personality disorders, or trauma responses. When that is the case, treating the underlying condition often helps with the lying. A person with severe anxiety might lie compulsively to manage fear; treating the anxiety makes the lying less necessary.
This is another reason therapy matters. A good therapist will assess whether the lying is the main issue or a symptom of something else, and they will treat accordingly. Sometimes the lying resolves once the person gets help for depression or anxiety. Sometimes it requires direct work on the lying itself.
Frequently Asked Questions
Is pathological lying the same as being a sociopath?
No. Pathological liars usually feel guilt or shame about their lying, and they often want to change. People with antisistency personality disorder (sociopathy) typically do not feel remorse and do not want to change. A pathological liar can develop honesty; someone with antisocial personality disorder is much less likely to.
Can someone change without therapy?
Some people change through self-awareness and support from people they trust, but therapy makes change much more likely. A therapist can identify what is driving the lying and teach specific tools to interrupt the pattern. Without professional help, people often try to stop through willpower alone, which rarely works for compulsive behavior.
How do I know if someone is actually changing or just lying about changing?
Real change shows up in behavior over time, not in words. Look for fewer lies over weeks and months, the person catching themselves and correcting course, and the person staying honest even when it is uncomfortable. One good week does not prove change; a pattern of honesty over months does.
What if someone relapses into lying after doing well?
Relapse is normal in behavior change. It usually means stress increased, the person stopped practicing the tools they learned, or they hit a trigger they had not encountered before. A relapse is not failure; it is information. The person should return to therapy, figure out what happened, and rebuild the habit.
Can I help someone change their lying if they are not ready?
No. You can encourage them to get help, set boundaries, and refuse to accept lies, but you cannot make them change. Change has to come from the person themselves. Trying to force change usually backfires and can damage your relationship further.