Pathological Liar: How to Cope with Someone’s Compulsive Lies (2024)

Pathological lying

Pathological lying, also known as mythomania and pseudologia fantastica, is the chronic behavior of compulsive or habitual lying.

Unlike telling the occasional white lie to avoid hurting someone’s feelings or getting in trouble, a pathological liar seems to lie for no apparent reason. This can make it frustrating or hard to know what to do if you believe you’ve met one.

Though pathological lying has been recognized for more than a century, there’s not yet a clear universal definition of the condition.

Some pathological lying may result from a mental condition, such as antisocial personality disorder (sometimes called sociopathy), while others appear to have no medical reason for the behavior.

A pathological liar is someone who lies compulsively. While there appears to be many possible causes for pathological lying, it’s not yet entirely understood why someone would lie this way.

Some lies seem to be told in order to make the pathological liar appear the hero, or to gain acceptance or sympathy, while there’s seemingly nothing to be gained from other lies.

Some evidence from 2007 suggests that issues affecting the central nervous system may predispose someone to pathological lying.

Compulsive lying is also a known trait of some personality disorders, such as antisocial personality disorder. Trauma or head injuries may also play a role in pathological lying, along with an abnormality in hormone-cortisol ratio.

A 2016 study of what happens in the brain when you lie found that the more untruths a person tells, the easier and more frequent lying becomes. The results also indicated that self-interest seems to fuel dishonesty.

Though the study didn’t specifically look at pathological lying, it may give some insight into why pathological liars lie as much and as easily as they do.

The following are some of the scientifically recognized traits and characteristics of pathological liars.

Their lies seem to have no clear benefit

While a person might lie to avoid an uncomfortable situation, such as embarrassment or getting in trouble, a pathological liar tells lies or stories that don’t have an objective benefit.

Friends and family can find this especially frustrating because the person lying doesn’t stand to gain anything from their lies.

The stories they tell are usually dramatic, complicated, and detailed

Pathological liars are great storytellers. Their lies tend to be very detailed and colorful.

Even though obviously over-the-top, the pathological liar may be very convincing.

They usually portray themselves as the hero or victim

Along with being made the hero or victim in their stories, pathological liars tend to tell lies that seem to be geared at gaining admiration, sympathy, or acceptance by others.

They sometimes seem to believe the lies they tell

A pathological liar tells lies and stories that fall somewhere between conscious lying and delusion. They sometimes believe their own lies.

It’s difficult to know how to deal with a pathological liar who may not always be conscious of their lying. Some do it so often that experts believe they may not know the difference between fact and fiction after some time.

Pathological liars also tend to be natural performers. They’re eloquent and know how to engage with others when speaking. They’re creative and original, and quick thinkers who don’t usually show common signs of lying, such as long pauses or avoidance of eye contact.

When asked questions, they may speak a lot without ever being specific or answering the question.

Most people lie at one time or another. Previous research has suggested that we tell an average of 1.65 lies every day. Most of these lies are what are considered “white lies.”

Pathological lies, on the other hand, are told consistently and habitually. They tend to appear pointless and often continuous.

White lies

White lies are occasional and considered:

  • small fibs
  • harmless
  • without malicious intent
  • told to spare another’s feelings or avoid getting in trouble

Some examples of white lies include:

  • saying you have a headache to get out of attending a meeting
  • saying you’ve paid the phone bill when you forgot to pay it
  • lying about why you were late for work

Pathological lies

Pathological lies are:

  • told frequently and compulsively
  • told for no apparent reason or gain
  • continuous
  • told to make the teller appear heroic or the victim
  • not deterred by guilt or risk of getting found out

Examples of pathological lying:

  • creating a false history, such as saying they’ve achieved or experienced something they haven’t
  • claiming to have a life-threatening illness that they don’t have
  • telling lies to impress others, such as saying they’re related to a famous person

Identifying a pathological liar isn’t always easy. While it may be human nature to be suspicious of anything that appears “too good to be true,” not all lies told by pathological liars are over-the-top.

They also tell “regular” lies that someone without a compulsion to lie might tell.

The following are some signs that may help you identify a pathological liar:

  • they often talk about experiences and accomplishments in which they appear heroic
  • they’re also the victim in many of their stories, often looking for sympathy
  • their stories tend to be elaborate and very detailed
  • they respond elaborately and quickly to questions, but the responses are usually vague and don’t provide an answer to the question
  • they may have different versions of the same story, which stems from forgetting previous details

Knowing a pathological liar can be deeply frustrating because the lying appears to be pointless.

It can test the trust in any relationship and make it hard to even have a simple conversation with the person.

Here are a few pointers to help you handle a conversation with a pathological liar:

Don’t lose your temper

As frustrating as it may be, it’s important not to let your anger get the better of you when confronting a pathological liar. Be supportive and kind, but firm.

Expect denial

Someone who pathologically lies may have the tendency to first respond with a lie. If you confront them about their lying, chances are that they’ll deny it.

They may become enraged and express shock at the accusation.

Remember that it’s not about you

It’s hard not to take being lied to personally, but pathological lying isn’t about you. The person may be driven by an underlying personality disorder, anxiety, or low self-esteem.

Be supportive

When talking to the person about their lies, remind them that they don’t need to try to impress you. Let them know that you value them for who they really are.

Don’t engage them

When you notice the person lying, don’t engage them. You can question what they’re saying, which may encourage them to stop the lie at that point.

You can also let them know that you don’t want to continue the conversation when they’re being dishonest.

Suggest medical help

Without judgment or shaming, suggest that they consider professional help and let them know your suggestion comes from genuine concern for their well-being.

Be prepared with information about pathological lying, such as a printout of an article or a pamphlet that they can read when they’re ready. Expressing that you’re concerned that their behavior may result from an underlying medical condition may also help.

A pathological liar is an excellent storyteller and performer. They know how to captivate their audience by telling elaborate and fantastic stories while being very animated.

Along with knowing how to weave and express a detailed story, people are also fascinated by what drives a person to lie.

It’s natural to want to know why they’re lying, especially when there doesn’t seem to be an apparent reason for their lies.

Diagnosing a pathological liar can be difficult because of the many possible causes of the behavior. Speaking with the person and conducting a medical history and interview isn’t usually enough to make a diagnosis because of the person’s tendency to lie.

An important part of diagnosing a pathological liar is determining if they recognize that they’re lying or believe the lies they tell.

Some professionals use a polygraph, also known as a lie detector test. The test isn’t to catch them in a lie, but to see how well or often they “beat” the polygraph as this suggests that they believe their lies or have become good at using other measures to convince others of their lies.

Some professionals also interview family members and friends when diagnosing a pathological liar.

Treatment will depend on whether or not the pathological lying is a symptom of an underlying psychiatric condition.

Treatment would include psychotherapy and may also include medication for other issues that might be fueling the behavior, such as drugs used to treat anxiety or depression.

How to empathize and cope with a pathological liar comes down to an understanding of what may be causing this person to lie while being supportive.

It’s likely that the lying is a symptom of another issue that can be treated. Encourage them to get the help they need.

Pathological Liar: How to Cope with Someone’s Compulsive Lies (2024)

FAQs

How do you deal with someone who compulsively lies? ›

The best option is psychotherapy. But even therapy can pose challenges, because pathological liars aren't in control of their lying. They may start telling lies to the therapist instead of addressing the problem directly. If you or someone you know has symptoms of pathological lying, it's important to get help.

How do you point out a pathological liar? ›

10 Pathological Liar Signs
  1. Embellishing lies with extensive details.
  2. Telling dramatic and highly unlikely stories.
  3. Appearing anxious while talking.
  4. Getting defensive when confronted about a lie.
  5. Constantly changing their story or being vague when questioned.
  6. Lying about something even when there's no reason to.
Nov 14, 2022

What mental illness causes pathological lying? ›

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.

How do you set boundaries with a pathological liar? ›

You can state your boundaries in this way: “I will not take any lying or dishonesty, whether verbal or nonverbal. A lie is a lie whether it is hidden or not. If information is left out intentionally, this will be considered a lie. Lying is painful to me and I will not allow it to be a part of our relationship anymore.”

Can a compulsive liar change? ›

Understanding what causes the lying is the only way to change a pathological liar's behavior. Treatment, which can include psychotherapy, medication, or both, will depend on whether or not the pathological lying is a symptom of an underlying psychiatric condition.

Can you be in a relationship with a compulsive liar? ›

It can be very difficult to deal with a partner who constantly lies. It can create anxiety and distrust. It may even cause you to question your relationship. Before this situation can cost you family and friends, it's important to consider getting help for you and your partner.

What personality disorder is a pathological liar? ›

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

Do pathological liars know they are pathological liars? ›

Coping Strategies

Know that it's not personal: While it can certainly be hard not to take it personally, it's important to remember that a person who lies pathologically may not necessarily be aware of it or intend to do it. They may even have underlying mental health conditions that are motivating their behavior.

What causes someone to become a compulsive liar? ›

Compulsive lying is usually thought to develop in early childhood, due to being placed in an environment where lying was necessary and routine. A lot of them find it easy to avoid confrontations with the truth, hence they stick to lying. Compulsive liars may or may not experience a mental disorder.

Are pathological liars insecure? ›

Other Reasons for Pathological Lying

Insecurity: Some people feel very insecure about who they are and might lie in an effort to make themselves feel better or inflate their own sense of self-worth. Lying may also be a defense mechanism to prevent ridicule or social exclusion.

Is pathological lying part of bipolar? ›

There is no clinical proof that bipolar disorder increases the frequency of lying, although people with the disorder, and their families, often report this tendency. Such a tendency may stem from features of mania such as: memory disturbances. rapid speech and thinking.

How does pathological lying affect the brain? ›

In a study in The British Journal of Psychiatry, scientists did brain scans on pathological liars and others, and found that the liars had more white matter in the brain's prefrontal cortex. They concluded that the increase in white matter may somehow provide these "super-liars" with ''the cognitive capacity to lie."

How do you convince a pathological liar to tell the truth? ›

How to Get the Truth Out of a Liar
  1. Wait to bring up the subject until you are alone.
  2. Speak to them in a gentle tone of voice.
  3. Ask them about what happened in different ways.
  4. Downplay the lie that they're telling.
  5. Empathize with them.
  6. Remain silent.
  7. Share what you think happened.

Can a marriage survive with a compulsive liar? ›

Yes, some marriages may survive chronic lying. You may develop a healthy relationship if your partner can take responsibility for their behavior and choose to change. Asking your partner to see a therapist individually or with you can be one way to take a step toward this change.

Do pathological liars believe their own lies? ›

It has been observed that pathological liars believe their lies to the extent that the belief may be delusional. As a result, PL has been referred to as a "wish psychosis." 1 Furthermore, PL has also been described as impulsive and unplanned.

What is worse a pathological liar or a compulsive liar? ›

The term “pathological lying” is often used interchangeably with “compulsive lying,” and there's no clear clinical difference between the terms. The research suggests that compulsive lying falls under the broader definition of pathological lying, rather than being its own separate phenomenon.

What happens when you confront a pathological liar? ›

If you confront them about their lying, chances are that they'll deny it. They may become enraged and express shock at the accusation. It's hard not to take being lied to personally, but pathological lying isn't about you. The person may be driven by an underlying personality disorder, anxiety, or low self-esteem.

Is being a pathological liar a mental illness? ›

Instead, it is recognized as a feature of other diagnoses, like personality disorders. As a result, there's no evidence-based way to treat it, even though many pathological liars say they want help to stop.

Do pathological liars have friends? ›

In many cases, stories are exaggerated to make the person appear smarter, more attractive, and more certain of themselves. It's very difficult for pathological liars to make true friendships or have long-lasting relationships because their loved ones tend to notice their lying after some time.

What do liars say when confronted? ›

For example, when confronted about something, they may reply with a murky statement such as "Would I do such a thing?" or even "I wouldn't do such a thing," rather than a straightforward "I didn't do it." Another indication of deception is using unnecessary words in a statement that make its meaning less clear.

Should you forgive a pathological liar? ›

You do not have to forgive someone who lies and is unrepentant about it, or even someone who lies, apologises and then does it again. Forgiveness will not come just because the other person apologises. But anger and resentment have a negative impact on your physical and emotional health.

What causes someone to lie compulsively? ›

Research indicates pathological lying can occur because of low self-esteem and a false sense of self. People who lie pathologically may want others to view them positively, making things up to make them look better. Their desire to create a false sense of self could indicate that they are unhappy with themselves.

What causes someone to be a compulsive liar? ›

Why do people become compulsive liars? This compulsion usually starts during childhood, often as a way of coping with difficult feelings of shame or anxiety. Growing up in an emotionally unsafe environment (where certain thoughts and feelings are considered 'wrong') can lead to habitual lying.

Do liars ever stop lying? ›

Long in duration: Studies show that pathological liars will continue with the excessive lying for at least six months. They may continue with a lie over the long-term, or they may move from lie to lie with fluidity. Pathological liars are typically able to maintain a lie for years.

What is the difference between a pathological liar and a compulsive liar? ›

Unlike the compulsive liar, who generally knows right from wrong, a pathological liar lives with a false sense of reality. If confronted, they become defensive and never admit their lies. Some evidence from a 2007 study suggests that issues affecting the central nervous system may predispose someone to be pathological.

Is compulsive lying a defense mechanism? ›

Lying allows a person to establish perceived control over a situation by manipulating it. It's a defence mechanism that (seemingly) prevents them from being vulnerable, that is, to not open up and reveal their true self to another person.

What is a narcissistic liar? ›

A narcissistic liar is a person who lies to get what they want. They are often charming and persuasive. But their primary goal is always self-promotion. They want to present themselves in a certain light and believe they can get away with it.

Do liars get worse with age? ›

(Medical Xpress) -- Older people cannot lie as convincingly as younger people, are worse at detecting when others are lying, and the latter is linked to age-related decline in emotion recognition, new University of Otago research suggests.

Do liars feel guilty? ›

Guilt is most likely when the liar shares values and respects the target of the lie. It is much harder to lie or cheat someone who has acted fairly. But if the wages are too low, the spouse cold and inconsiderate, the parent too strict – the liar may feel entitled to cheat, and feel no guilt about doing so.

Does a pathological liar know they are a pathological liar? ›

Coping Strategies

Know that it's not personal: While it can certainly be hard not to take it personally, it's important to remember that a person who lies pathologically may not necessarily be aware of it or intend to do it. They may even have underlying mental health conditions that are motivating their behavior.

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