People with Borderline Personality Disorder (BPD) often lie as a coping mechanism, driven by intense fear of abandonment, deep-seated shame, unstable self-identity, and rejection sensitivity, rather than malicious intent. Lies help them avoid difficult conversations, conceal mistakes that trigger shame, maintain an idealized image to prevent rejection, or explain intense emotional reactions that feel "over the top". It's often an automatic behavior, sometimes stemming from childhood trauma, serving as a way to manage overwhelming internal distress and secure connection.
Psychology, Emotions & Reality. Lying is a common behavior for folks with borderline personality disorder (BPD) or other emotional dysregulation problems and is often quite distressing for everyone involved.
While not all people with BPD lie, BPD and lying can run the risk of weakening trust and placing a relationship in jeopardy, since it's a mental health condition often marked by emotional volatility, negative self-perception and unhealthy attachment styles, a partner with BPD may not even realize they're behaving this ...
Impulsive behaviour
a strong impulse to engage in reckless and irresponsible activities – such as binge drinking, drug misuse, going on a spending or gambling spree, or having unprotected sex with strangers.
What mental illness causes pathological lying? Pathological liar signs can be symptoms of obsessive-compulsive disorder, antisocial personality disorder, borderline personality disorder, narcissistic personality disorder, and Munchausen syndrome by proxy.
Encourage self-reflection by creating a safe space for your loved one to discuss their feelings without feeling judged. This will open up opportunities for individuals with BPD to act more like themselves and avoid unnecessary lying. It's important to stay patient when having these intense conversations.
People with borderline personality disorder have a strong fear of abandonment or being left alone. Even though they want to have loving and lasting relationships, the fear of being abandoned often leads to mood swings and anger. It also leads to impulsiveness and self-injury that may push others away.
Up to 50% of people with Borderline Personality Disorder (BPD) experience psychotic symptoms like hallucinations and paranoid thoughts. BPD-related psychosis typically differs from other psychotic disorders as symptoms are usually brief, stress-triggered, and the person often maintains some reality testing.
The "3 C's of BPD" typically refer to advice for loved ones of someone with Borderline Personality Disorder, reminding them: "I didn't cause it, I can't cure it, I can't control it," to help set boundaries and avoid taking on undue responsibility for the person's actions or illness. Another set of "C's" describes core BPD traits for individuals: Clinginess (fear of abandonment), Conflict (intense relationships/moods), and Confusion (unstable self-image).
Some common warning signs include intense and rapidly changing emotions, often triggered by seemingly minor events. Individuals with BPD may exhibit impulsive behaviors such as substance abuse, binge eating, or reckless driving.
Partners and family members of people with BPD often describe the relationship as an emotional roller coaster with no end in sight. You may feel like you're at the mercy of your loved one's BPD symptoms—trapped unless you leave the relationship or the person takes steps to get treatment.
Do not tell people with BPD how they should be feeling or behaving. Anger in people with BPD may represent one side of their feelings which can rapidly reverse so keeping this point in mind can help avoid taking the anger personally.
Here are ways to respond to lying in BPD:
Why BPD Symptoms Peak in Early Adulthood. In the 20s, identity formation and independence conflict with emotional vulnerability. Research shows impulsivity and mood swings occur most frequently between the ages of 18-25.
Some common types of delusions that may occur in individuals with BPD include: Persecutory delusions: Believing that one is being mistreated, harassed, or conspired against by others.
While psychopathy and BPD share characteristics such as impulsivity, they are distinct disorders with unique features. Psychopathy is often associated with a lack of empathy and remorse, manipulative behavior, and a grandiose sense of self-worth.
Between 50% and 90% of patients with BPD report hearing voices that other people do not hear (Yee et al., 2005; Kingdon et al., 2010). Importantly, such auditory verbal hallucinations (AVH) are a risk factor for suicide plans, attempts, and hospitalization (Miller et al., 1993; Zonnenberg et al., 2016).
Clinicians can be reluctant to make a diagnosis of borderline personality disorder (BPD). One reason is that BPD is a complex syndrome with symptoms that overlap many Axis I disorders. This paper will examine interfaces between BPD and depression, between BPD and bipolar disorder, and between BPD and psychoses.
BPD behaviors include frantic efforts to avoid abandonment, unstable relationships, unstable self-image, impulsivity (spending, sex, substance abuse, reckless driving, binge eating), recurrent self-harm or suicidal threats, intense mood swings (anger, anxiety, depression for hours/days), chronic emptiness, and stress-related paranoia or dissociation. These behaviors stem from deep fears and difficulty regulating emotions, often leading to extreme reactions and unstable life patterns.
Bold – Impulsivity is a BPD trait that can be positively linked to being bold, courageous and having the ability to speak one's mind. Creative – The high intensity of emotions can be released into creative endeavours. Many people with BPD put their entire emotional expression into music, art, performance and writing.
They are incredibly loyal and humble. However, this may make them clingy. The end of a close relationship may be tough for them to cope with. They may feel that their world has come to a standstill.
Instead of saying, “I didn't do it,” a deceptive person might shift the focus with a protest statement like “Why would I do something like that?” or “You know me, I would never.” Others might repeat a question verbatim, buying themselves time while crafting a response.
Here are a few techniques to determine if someone is telling the truth or not.
“Among other common lies, we have the silent lie — The deception which one conveys by simply keeping still and concealing the truth. Many obstinate truth-mongers indulge in this dissipation, imagining that if they speak no lie, they lie not at all.” —Mark Twain (1835-1910)