10.03.2023 - Mental Health

EXPLORING DIFFERENT TYPES OF PERSONALITY DISORDERS - THE FULL PERSONALITY DISORDERS GUIDE

Personality Disorder blog cover

Personality Disorders can be a tricky subject – people with personality disorders (PDs) may not always talk about them openly for fear of judgement. Personality Disorders are directly linked to mental health and affect your personality traits, which include how a person speaks and interacts with people, their demeanour, the way they do things, the way they reason, and so on. Most personality disorders refer to something unusual within the individual’s personality.

For instance, they might not process life the same way as people without a PD do. Their moods could be erratic or reach extreme highs and lows.

What is a personality?

Personality is essential for determining who we are as individuals. It involves a unique combination of characteristics, including attitudes, beliefs, and behaviours, as well as how we display these characteristics in our relationships with people and the world at large.

What is a personality disorder?

A personality disorder is a mental condition that affects how the person behaves or sees life in general. Personality disorders lead to distorted thinking patterns and processes. Some people with a personality disorder may feel as though they are sad every day and like everything is frustrating and unenjoyable. They may also feel a need to control situations, people, and the narrative of their life, often leading to the maintenance of unstable relationships.

According to the American Psychiatric Association, there are around 10 specific personality type disorders clustered into groups that share a unique set of symptoms. These fall under DSM-5 TR, a Diagnostic and Statistical Manual of Mental Disorders.

The disorders include three main clusters discussed later in this guide.
  • Class A - Schizoid, paranoid, schizotypal. Individuals with paranoid, schizotypal, and schizoid personality disorders (PDs) share an unwillingness to socialise with others, which is frequently accompanied by a decreased capacity to empathise with the emotions of others.

  • Class B – Histrionic, narcissistic, borderline, and antisocial. These personality disorders are characterised by aggressive and chaotic actions including high, unstable and excessive emotions and impulsive behaviour.

  • Class C – Obsessive compulsive, avoidant, dependent. These PDs are characterised by extreme worry and fear.

Different Personality Disorder types

Personality disorders all come with a different prognosis depending on the individual. Some individuals are able to lead a relatively normal life, while others struggle more.

Cluster A

  • Paranoid personality disorder (PPD)

  • Schizoid personality disorder (ScPD)

  • Schizotypal personality disorder (STPD)

Paranoid Personality Disorder

Paranoid personality disorder is associated with intense mistrust and suspicion. People with this disorder are constantly under the impression that others are plotting against them. They cannot trust anyone other than themselves, and struggle to develop personal relationships and confide in others. They are also hypervigilant, always seeing negativities that don’t exist.

Schizoid Personality Disorder

Someone with ScPD doesn’t have an interest in other people and often doesn’t consider other people’s feelings or whether they are hurting others with their actions. They don’t experience pleasure from being in social settings and do everything to keep away from other people. They also show minimal emotions and appear detached from their actions and reactions toward others.

Schizotypal Personality Disorder

STPD is a disorder that makes these personality types appear more eccentric to other people. STPD don’t have many friends and believe that how people act towards them is an adverse concern. They may have never developed the skills to interact with other people.

Cluster B

  • Antisocial personality disorder (ASPD)

  • Borderline personality disorder (BPD)

  • Histrionic personality disorder (HPD)

  • Narcissistic personality disorder (NPD)

Antisocial Personality Disorder

Antisocial personality disorder results in a huge disregard for other people and the behaviour is persistent. ASPD don’t consider how they hurt others. Individuals with this personality disorder are often deceitful, reckless, victim-blaming, manipulative, exploitative, and dangerous.

Borderline Personality Disorder

With BPD, the individual may have undergone trauma in their childhood years. They suffer with mental illness that prevents them from establishing relationships and undergoing personal development, often making them more vulnerable to social isolation. Individuals with BPD are often erratic and highly sensitive, and their emotions are explosive.

Histrionic Personality Disorder

Often, people with HPD use their physical appearance to their advantage to act inappropriately, seductively, or provocatively. They use mental and physical manipulation to control their partners because they require their partners to boost their attention-seeking needs. They struggle with intimacy and relating to others and often impersonate a character.

Narcissistic Personality Disorder

Those with NPD use manipulation, deception, and self-seeking affirmation in their daily life even when it hurts others. Individuals with NPD struggle with their self-esteem and need constant validation using manipulation and deceit to achieve this.

Cluster C

  • Avoidant personality disorder (AVPD)

  • Dependant personality disorder (DPD)

  • Obsessive Compulsive disorder (OCD)

Avoidant Personality Disorder

People with AVPD want to protect themselves from rejection and often avoid social situations. They don’t foster new relationships or make many friends and may turn down opportunities for fear of being criticised.

Dependant Personality Disorder

Persons with DPD are often submissive and need constant care. They come across as clingy and incessantly need validation and assurance. They also struggle to make regular decisions without the help of another and constantly rely on a partner to help them decide on everything, even what clothes to wear.

Obsessive-Compulsive Disorder

People with obsessive-compulsive personality disorder often need to control their environment as they are headstrong and regarded as perfectionists. OCD often makes people extremely focused on rules, details, and timing. It is upsetting for them when they don’t achieve these perfectionistic and even unreasonable goals.

How frequently do personality disorders occur?

  • Approximately 9% of adults in the United States and 6% of the global population suffer from a personality disorder, with borderline personality disorder (BPD) and antisocial personality disorder being the most frequently diagnosed.

  • A personality condition characterised by schizoid traits is unusual. About 3.1% to 4.9% of Americans have this disorder.

  • A disorder of paranoid personality is relatively uncommon. Experts estimate that 0.5% to 4.5% of the U.S. population is affected.

  • A disorder of histrionic personality is relatively uncommon. Researchers estimate that approximately 1% of the population is affected.

  • According to specialists, 5% of individuals suffer from a narcissistic personality disorder.

  • Borderline personality disorder occurs infrequently. BPD affects nearly 1.4% of the adult U.S. population, and research indicates that ASPD affects between 1% and 4% of U.S. residents.

  • The prevalence of obsessive-compulsive disorder is moderate. It affects between 1.6% to 2.3% of the U.S. general population.

Personality Disorder Symptoms


Class A

  • Schizoid. Typically, individuals with schizoid personality do not desire or enjoy close relationships, even with family members. They choose hobbies, activities, and jobs that are solitary in nature. They have little or no desire for sexual activity, rarely experience or express strong emotions, and have an apparent indifference to praise or criticism by others.

  • Paranoid. Individuals with Paranoid disorder are frightened to share personal information for fear it will be used against them. They can be vengeful, oversensitive to criticism, and overthink others’ casual comments and looks. They can perceive hidden character attacks in conversation and have unfounded suspicions that their partners are cheating. In turn, they can be dominating to prevent getting betrayed. They often believe they’re always right and have ongoing feelings of stress.

  • Schizotypal. Those with Schizotypal Personality Disorder can be socially anxious and unsociable. They rarely have close friends beyond first-degree relatives. They can act oddly, use strange terms and phrases, and even believe they have paranormal powers or perceptive experiences. They can be paranoid and have trouble maintaining eye contact or keeping up with school and work. They are rarely aware that their actions affect others.

Class B

  • Histrionic. Those with a histrionic personality disorder often feel unhappy or underappreciated when not the centre of attention. They can have unstable emotions and dramatically express them. They are preoccupied with their looks and often flirt inappropriately. They are attention seeking and powerful speakers but they can appear artificial or shallow, and easily get bored or frustrated without constant fulfilment or reassurance.

  • Narcissistic. Individuals with narcissistic personality disorder have an overinflated sense of self-importance. They have constant thoughts about being more successful, powerful, smart, loved or attractive than others, feelings of superiority and the desire to only associate with people they perceive as high-status. They have a need for excessive admiration and a sense of entitlement. They may also express a willingness to take advantage of others to achieve their goals and a lack of understanding of other people’s feelings. Generally, they are arrogant and snobby.

  • Borderline. BPD sufferers often fear abandonment. They can feel fear and rage when they feel abandoned. They may prevent rejection by pushing people away before getting close. They often have unstable, intense connections. BPD patients change their opinions of others quickly, making it hard to maintain healthy relationships. They can instantly idealise or devalue others. They have shaky friendships, marriages, and family ties.

They also tend to have unstable self-image. BPD patients may feel guilty, ashamed, and "terrible" about themselves. They may also drastically shift their goals, attitudes, occupations, and friendships. They also tend to sabotage their own progress. They may intentionally fail a test, harm relationships, or be fired.

BPD patients have quick mood changes and may suddenly shift how they feel about others, themselves, and the world. Irrational emotions—including excessive anger, fear, anxiety, hatred, grief, and love—change frequently and quickly. These swings normally only last a few hours and seldom longer than a few days.

They also present with impulsive and dangerous behaviour: episodes of reckless driving, fighting, gambling, substance use, binge eating and/or unsafe sexual activity are common among people with BPD.

Individuals with BPD may also self-harm, cut, burn, or damage themselves or threaten to, and may also consider suicide. Rejection, abandonment, or disappointment by a caregiver or partner generally causes these self-destructive acts.

BPD patients can feel depressed, bored, dissatisfied, or "empty." Self-loathing and worthlessness are also widespread. They can often grow enraged. They may lash out with sarcasm, bitterness, or rage. Shame and guilt follow these experiences.

Extreme stress—usually fear of abandonment—can cause dissociative episodes, paranoid thoughts, and hallucinations. These symptoms are usually mild and transitory.

Not everyone with borderline personality disorder has these symptoms. Symptoms vary per person.

  • Antisocial Personality Disorder. Those affected by antisocial personality disorder may be physically violent, behave irresponsibly, attribute their difficulties to others, infringe the law, mislead or manipulate others, and express a lack of regret for harmful activities.

Class C

  • Obsessive-Compulsive Disorder. Obsessions and compulsions that interfere with everyday activities are the core signs of OCD. For instance, symptoms may frequently prohibit patients from arriving on time to work. They may have difficulty doing other tasks such as getting ready for bed in a timely manner.

Patients may recognise that these symptoms are problematic, yet are unable to eliminate them. OCD symptoms may come and go, improve or worsen over time.

  • Avoidant Personality Disorder. Those with this disorder fear rejection so much that they avoid relationships. They often dread embarrassment and rejection. Criticism hurts them and they shun social situations and occupations because of their severe anxiety and fear. Because they fear making mistakes or embarrassment, they are shy, awkward, and self-conscious in social situations. They overstate issues, hardly experiment, and consider themselves inferior.

  • Dependent Personality Disorder. Dependent personality disorder symptoms include self-denial, loneliness, abandonment, and powerlessness after partnerships end, overreaction, pessimism, self-doubt, and decision-making issues.

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Risks & Causes of Personality Disorder

People may develop PDs because of their upbringing, some may have traumatic experiences, some may have been overly praised as a young child or abandoned, and some may inherit their disorders genetically. Generally, we can divide these factors into two categories:

Environmental factors

Factors regarded as environmental influences include how the person was raised, relationships between family members, and events that may have occurred in early childhood.

Genetic factors

Genetic or hereditary aspects include genes passed down from parent to child. This category can also include chemical imbalances in the brain.

Class A

1. Schizoid Personality Disorder

  • Having a parent or other relative with schizoid personality disorder, schizotypal personality disorder, or schizophrenia increases your risk of developing schizoid personality disorder.

  • Having a parent who was emotionally distant, unresponsive, or neglectful.

2. Paranoid Personality Disorder

A study has linked childhood trauma to PPD. Childhood emotional, physical, and supervisory neglect predicated PPD symptoms in late adolescence and early adulthood. PPD has been cross-sectionally linked to childhood and adolescent physical abuse, but not sexual abuse. PTSD was more common among PPD patients in this study. PPD was linked to sexual and physical maltreatment in mental adult outpatients.

3. Schizotypal Personality Disorder

Risk factors for Schizotypal Personality Disorder include:

  • Schizophrenia or other mental illness in the family
  • Brain damage
  • Childhood maltreatment or neglect
  • Having an uncaring parent
  • Prenatal sickness or injury
  • Neurological abnormalities

Class B

1. Histrionic Personality Disorder

Histrionic personality disorder has no one aetiology. Risk factors for this condition include:

  • Being rewarded for attention-seeking behaviour as a child

  • Personality disorders, anxiety, or depression in the family

  • Learning from histrionic parents or caregivers

  • Lack of discipline as a child

  • Unpredictable parental attention

  • Depression or anxiety

  • Possessing the genes for personality disorders

2. Narcissistic Personality Disorder

Causes for NPD are unknown. Factors may include:

  • Child abuse (such as physical, sexual, and verbal abuse)

  • Poor parent-child relationships

  • Genetics

  • Childhood hypersensitivity to textures, noise, or light

  • Personality and temperament

3. Borderline Personality Disorder

Doctors believe BPD is caused by several factors:

  • Childhood trauma: Up to 70% of BPD sufferers were abused as children. BPD is linked to maternal separation, inadequate maternal bonding, incorrect family boundaries, and parental substance use disorder.

  • Genetics: BPD runs in families. If your family has BPD, you may develop it too.

  • Brain changes: BPD patients' emotional and behavioural centres don't communicate. These issues influence brain function.

4. Antisocial Personality Disorder

The following factors may raise the risk of ASPD:

  • Biology: ASPD may cause serotonin imbalances. Serotonin controls mood and happiness.

  • Environment: Childhood trauma and drug abuse raise the risk of ASPD.

  • Genetics: ASPD may be predisposed by heredity. The disease has no one genetic cause.

  • Lifestyle: Half of the ASPD patients abuse drugs or alcohol.

  • ASPD is more common among men.

Class C

1. Obsessive-Compulsive Disorder

OCD causes are unknown. Some factors may be:

  • Genetics: First-degree relatives (biological parents or siblings) with OCD are more likely to develop the illness. OCD in children or teens raises the risk.

  • OCD patients have different frontal cortexes and subcortical architecture, according to imaging studies. Parkinson's illness, Tourette's syndrome, and epilepsy also share brain regions with OCD.

  • Paediatric autoimmune neuropsychiatric diseases associated with streptococcal infections (PANDAS): It defines a range of symptoms that can affect children with strep infections including strep throat or scarlet fever. One is OCD.

  • Childhood trauma: Some research links OCD to childhood trauma such as abuse or neglect.

2. Avoidant Personality Disorder

Avoidant personality disorder has unknown causes, however genetics and environment are thought to contribute. Although not proven, avoidant personality disorder may be genetically inherited. Childhood environment matters. Avoidant personality disorder requires that individuals maintain their extreme shyness throughout maturity. The condition generally involves parental or peer rejection, which can lower self-esteem.

3. Dependant Personality Disorder

The cause of DPD is unknown to psychiatrists. They think genetics, environment, and development cause it. Some factors include:

  • Abusive relationships increase the risk of DPD.

  • Childhood trauma: Child abuse (including verbal abuse) and neglect can lead to DPD. Life threatening illness in childhood can also be a factor.

  • Family history: DPD may run in families.

  • Cultural, religious, and family practices that promote authority may cause DPD. DPD is not only passivity or politeness.

Family support for individuals with Personality Disorders

Personality disorders are not easy to manage and are very complex conditions. They can make it hard for families to connect with loved ones, and bring about conflict that may not have been there if it wasn’t for the PD.

If you can spot the signs as mentioned earlier in this guide, you can help manage the symptoms of PDs. Still, treatment from a mental health professional is advised for coping with a PD.

When dealing with PDs, it’s important to set boundaries and be patient with the individual. People with PDs don’t always have control over their emotional reactions. Don’t judge them because it makes them feel worse. Get professional help for them if they are willing. Talk to them, so they know there is no shame in seeking help.

Treatment for Personality Disorders

Personality disorders require custom treatment for each individual case. Treatment may include medication and psychological therapies for specific mental disorders.

The Kusnacht practice is equipped to treat personality disorders and ensures health and care excellence, providing an array of specialised mental health therapies and treatments suited to each individual with:

The Kusnacht Practice provides treatment for conditions such as co-dependency, anxiety, depression, and trauma. You can also find a range of specialised treatments for mental health concerns such as addictions and eating disorders.

Get in touch if you or someone you know needs treatment for a personality disorder and help with ways to interact with family members.

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