What is a Personality Disorder?
A personality disorder is a long-term condition in which an individual’s ways of thinking, feeling, and behaving deviate from cultural expectations, causing distress or problems in functioning.

These deviations usually begin in late adolescence or early adulthood and can last a long time if left untreated. Personality disorders are defined in the DSM-5-TR (the most current revision of the Diagnostic and Statistical Manual of the American Psychiatric Association) as long-term patterns of behavior and internal experiences that show significant differences in at least two areas: the way a person thinks about himself and others, his emotional responses, his relationships with other people, and the way he controls his behavior. There are ten specific personality disorders defined in the DSM-5-TR.
What are the Types of Personality Disorders?
The types of personality disorders defined in DSM-5-TR are as follows:
- Antisocial Personality Disorder: Antisocial personality disorder is a common condition in society, affecting 3-7% of men in particular. This disorder manifests itself with symptoms such as disrespect for the rights of others, failure to comply with social norms, lying, cheating and a tendency to commit crimes. Individuals with antisocial personality disorder usually exhibit impulsive behaviors, and these behaviors can often lead to social and legal problems.
- Avoidant Personality Disorder: Avoidant personality disorder is a personality disorder characterized by extreme shyness, feelings of inadequacy and extreme sensitivity to criticism. Individuals with this disorder generally hesitate to start new relationships unless they are guaranteed to be liked by people. They may avoid social interactions due to fear of criticism or rejection and perceive themselves as inadequate or lacking in social skills. This can lead to serious difficulties in social relationships and general functioning.
- Borderline Personality Disorder: Borderline personality disorder is a common personality disorder characterized by instability, intense emotions, low self-image, and impulsivity in personal relationships. Individuals with this disorder may exhibit extreme behaviors due to fear of abandonment, may attempt suicide, and may experience violent outbursts of anger. Self-destructive behaviors such as idealizing or devaluing other people in relationships, substance use, and excessive spending are also common. These situations negatively affect daily life and social relationships.
- Dependent Personality Disorder: Dependent personality disorder is a personality disorder characterized by constant dependence on others and exhibiting clingy behaviors. Individuals with this disorder have difficulty making daily decisions without reassurance from others and usually feel uncomfortable or helpless when they are on their own. This situation manifests itself as excessive dependence and a need for constant support from other people. They may feel uncomfortable or helpless when they are alone.
- Histrionic Personality Disorder: Histrionic personality disorder is a disorder characterized by excessive emotional behavior and a need for attention. Individuals with this disorder may generally use their physical appearance when they want to be the center of attention and may exhibit rapidly changing or exaggerated emotions in order to attract attention. These individuals, who are constantly trying to be the center of attention in their environment, may exhibit restless and disturbed behaviors when they do not receive the attention they want. This situation may lead to various difficulties in their social relationships and daily functions. or may exhibit rapidly changing or exaggerated emotions.
- Narcissistic Personality Disorder: Narcissistic personality disorder is a personality disorder characterized by an excessive need for admiration and lack of empathy. Individuals with this disorder usually see themselves as superior and believe that they are special. They expect privileges, may use others for their own benefit, and ignore the feelings and thoughts of others. This situation may lead to difficulties in social relationships and environments that require cooperation.
- Obsessive-Compulsive Personality Disorder: Obsessive-Compulsive Personality Disorder is a personality disorder defined by individuals’ excessive need for order, perfection, and control. Individuals with this disorder are usually extremely meticulous and want everything to be logical and orderly. They pay excessive attention to details in their business and social lives, which can lead to them working excessively and not having enough time for social relationships or leisure activities. They also have a very rigid structure in terms of morality and values. This condition is often referred to as “obsession disease” among the public and can significantly affect individuals’ daily lives and social relationships.
- Paranoid Personality Disorder: Paranoid personality disorder is characterized by an intense sense of distrust and suspicion towards others in individuals. These individuals often have strong suspicions, without reason, that those around them will harm or deceive them. This causes them to have difficulty trusting others and experience constant tension in their social relationships. They may doubt loyalty, especially in close relationships, which can lead to isolation in their personal and professional lives.
- Schizoid Personality Disorder: Schizoid personality disorder is a personality disorder characterized by avoiding social relationships and reduced emotional expression. Individuals with this disorder generally avoid forming close relationships, prefer to be alone, and may be indifferent to the praise or criticism of others. Individuals with schizoid personality disorder tend to live an isolated life, generally avoiding interaction with other people. This can cause significant difficulties in their social and personal relationships.
- Schizotypal Personality Disorder: Schizotypal personality disorder is characterized by discomfort in close relationships, disordered thinking, and odd behaviors. Individuals with this disorder may exhibit odd beliefs and unusual behaviors, and may experience extreme social anxiety. These characteristics can lead to difficulties in social interactions and adaptation.
What Are The Symptoms of Personality Disorder?
Although the symptoms of personality disorders vary depending on the type of personality disorder, they are generally seen as significant deviations in the person’s thought, emotion and behavior patterns. These symptoms usually emerge after adolescence or early adulthood and continue for a long time. Some common symptoms are:
- Instability in Relationships: Constant problems in close relationships, excessive dependency or, on the contrary, excessive distance.
- Emotional Fluctuations: Sudden and severe mood swings, emotional instability.
- Thought Disorders: Thoughts disconnected from reality, strange beliefs or paranoia.
- Social Adaptation Problems: Difficulty in complying with social norms and rules, inability to adapt in social environments.
- Self-image Problems: Constant changes and uncertainties in self-perception, low self-esteem.
- Impulsive Behaviors: Acting without thinking, harmful or dangerous impulsive behaviors.
- Emotional Coldness or Isolation: Being emotionally detached from other people or emotionally deprived of relationships.
- Extreme Perfectionism or Controlling: Obsessive thoughts that everything must be perfect, inflexibility.
- Lack of Empathy: Difficulty understanding or caring about the feelings of others.
These symptoms may vary depending on the type of personality disorder and can negatively affect the person’s functionality, social and professional life. It is important to consult a specialist psychologist or psychiatrist for appropriate diagnosis and treatment processes.
What are the Causes of Personality Disorders?
Although the causes of personality disorders are not known for sure, it is thought that a number of genetic, biological, psychological and environmental factors play a role in the development of these conditions. Some factors that may be effective in the formation of personality disorders are as follows:
- Genetic Factors:
Personality disorders can be seen at a high rate in families, which indicates that there may be a genetic predisposition.
Studies have found genetic variations associated with some personality disorders.
- Biological Factors:
Abnormalities related to the structure and functioning of the brain, especially differences in the frontal lobes and limbic system, can play a role in the development of personality disorders.
Hormonal imbalances or abnormalities in neurotransmitter levels can also be effective.
- Psychological Factors:
Negative experiences such as early life experiences, childhood traumas and abuse can affect personality development.
Family relationships, parents’ attitudes and behavioral patterns also play an important role.
- Environmental Factors:
Factors such as the social environment, cultural influences and education can affect personality development and the formation of disorders.
Stressful life events such as problems in relationships, social isolation or social pressures can also pave the way for personality disorders.
- Parenting Styles:
Parenting styles such as overprotective or controlling parenting styles experienced in childhood can affect personality development.
Neglectful or rejecting attitudes can also negatively affect the child’s emotional and social development.
Since each of these factors varies among individuals, the causes and development of personality disorders may vary from person to person. A specialist health professional can assess individual
How to Understand Personality Disorder?
Understanding a personality disorder usually begins with observing a persistent and long-term deviation in an individual’s thought, feeling, and behavior patterns. These deviations can negatively impact a person’s social, work, or personal functioning. Here are some ways to define personality disorders:
- Long-term Behavioral Patterns:
The presence of persistent and fixed patterns in an individual’s thought, feeling, and behavior, which impair the person’s ability to function in a broader context.
- Relationship Problems:
Constant and recurring relationship problems, such as constant conflict with other people or excessive dependency in relationships.
- Emotional Instability:
Emotional swings, intense or inappropriate emotional reactions.
- Lack of Empathy:
Difficulty understanding the feelings or needs of others, insensitivity to others.
- Social Maladjustment:
Difficulty adapting to social norms and rules, not being accepted by the social environment, or being constantly criticized.
- Self-Destructive Behaviors:
Self-destructive tendencies or impulsive, uncontrollable behaviors.
- Professional Assessment:
A comprehensive examination of an individual’s condition through evaluations, various psychological tests, and interviews conducted by a health professional such as a psychiatrist or clinical psychologist.
- Diagnosis According to DSM-5 Criteria:
The Diagnostic and Statistical Manual (DSM-5), published by the American Psychiatric Association, provides specific criteria for defining personality disorders. A professional can use these criteria to determine the presence and type of personality disorder.
The diagnosis and management of personality disorders can be complex and often require a comprehensive evaluation. Therefore, it is important to seek professional evaluation and support if such a condition is suspected.
Can Personality Disorders Be Treated?
Yes, personality disorders can be treated, but the treatment process can often be long and challenging. Since personality disorders stem from deep-rooted thought and behavior patterns, changing these patterns takes time and requires increasing one’s self-awareness. Here are some methods used in the treatment of personality disorders:
- Psychotherapy:
Cognitive Behavioral Therapy (CBT): CBT helps individuals question and change their thought and belief systems, emotional responses, and behaviors.
Schema Therapy: It is used especially for conditions such as borderline personality disorder and addresses harmful life patterns that developed in childhood.
Psychodynamic Therapy: It helps individuals understand and resolve their unconscious thoughts and beliefs.
- Group Therapy:
In a group setting, individuals can develop social skills and receive support by interacting with others who have similar problems.
- Medication:
Psychiatrists may recommend antidepressants, mood stabilizers, or antipsychotic medications for some personality disorders. These medications can be especially helpful in cases where there is significant anxiety, depression, or other mental health issues.
It is important to develop a personalized treatment plan that takes into account the individual’s unique needs during the treatment process. The success of the treatment depends largely on the individual’s commitment to the treatment and the length of the process. Consulting with a psychiatrist or clinical psychologist before starting treatment is critical to determining the correct diagnosis and treatment methods.
Frequently Asked Questions About Personality Disorders
Professionals who should be consulted for the diagnosis and treatment of personality disorders are those who specialize in mental health. Psychiatrists, who are medical doctors, can evaluate mental health problems, make diagnoses, and provide medical treatments, including medication. They are often the preferred specialists for complex conditions such as personality disorders. Clinical psychologists, who have postgraduate training in psychology, play an active role in the diagnosis and treatment of personality disorders by conducting behavioral assessments and psychotherapy. They can perform personality tests and cognitive assessments.
If personality disorders are not treated, individuals may experience serious and persistent difficulties in their daily lives, interpersonal relationships, emotional states, and behavioral impulse control. If left untreated, these conditions can lead to significant problems in social and professional areas such as work or school life.
As long as individuals believe that they are generally satisfied with their lives and that their lives are going well, they usually do not feel the need to seek treatment. This may cause individuals with personality disorders to expect the environment to adapt to them rather than adapting to them. Instead of understanding and working on the difficulties they experience, they continue to repeat the same problematic behaviors and avoid taking responsibility. This can lead to constant friction and conflict in relationships and other social interactions.
In addition, if individuals with personality disorders are not treated, they have a high risk of developing psychiatric disorders such as depression and anxiety disorders. Other health problems such as alcohol or substance use disorders may also develop. Individuals who do not receive treatment may experience emotional difficulties, which can lead to serious consequences such as tendencies to harm themselves or others and suicide attempts.
Therefore, the diagnosis and treatment of personality disorders are vital to improving the individual’s quality of life and to better functioning in the wider society. It is important to seek professional help to cope with these disorders.




