Personality disorders — what they are and how they differ from a “difficult character”
I see the person as a whole — and that is how I guide them.
Before we label someone “difficult,” it is worth pausing to ask where individual character traits end and where a personality disorder requiring professional diagnosis and a calm, staged plan of help begins.
Personality disorders — what are they according to contemporary classifications?
Personality disorders are mental disorders in which enduring patterns of thinking, feeling and behaving are rigid, insufficiently flexible, and lead to clear difficulties in occupational, social life and relationships.
Current classifications (DSM‑5, ICD‑10, ICD‑11) describe them as patterns present from early adulthood, stable over time and manifesting across different contexts — not only in one relationship or one situation.
Diagnosis takes into account four main areas: self and other perception, emotion regulation, interpersonal relationships and impulse control.
We speak of a personality disorder when disturbances in these areas are severe enough to cause distress or significantly impair daily functioning.
“Difficult character” — a colloquial term or a warning signal?
“Difficult character” is not a medical term or a diagnostic label.
It is a colloquial expression often used to describe a person who is demanding in relationships, more conflictual or less flexible, but not necessarily ill.
Often this label covers very different situations:
a person with high emotional sensitivity
someone with a strong need for control
a person under chronic stress or in a life crisis
a person with actual symptoms of a personality disorder
Therefore “difficult character” by itself does not indicate whether we are dealing with a personality disorder.
Key is examining the background: how long the difficulties have lasted, how broadly they affect life, whether they cause suffering and whether they appear across multiple areas of functioning.
Personality disorders — basic types in classifications
In classical approaches (e.g., DSM‑5) personality disorders are grouped into three clusters:
Cluster A – odd and eccentric patterns (e.g., paranoid, schizoid, schizotypal personality)
Cluster B – dramatic, emotional, impulsive patterns (e.g., borderline, antisocial, histrionic, narcissistic personality)
Cluster C – anxious, avoidant patterns (e.g., avoidant, dependent, obsessive‑compulsive personality)
Each type is associated with characteristic patterns:
in the emotional domain (e.g., tendency to intense, rapidly changing emotions)
in thinking style (e.g., rigid, suspicious interpretation of relationships)
in behavior (e.g., impulsivity, social avoidance, submissiveness)
In clinical practice there is a growing move away from rigid “boxing” of patients toward a dimensional approach that describes the severity of individual personality traits rather than only “has/does not have” a disorder.
Personality disorders versus a “difficult character” — the main differences
Persistence and scope of symptoms
In personality disorders:
symptoms are present for years (most often from late adolescence or early adulthood)
they occur in various areas of life — at work, in relationships, in the family
they are difficult to “switch off” or change even with strong motivation
In a “difficult character”:
behaviors are more often situational (e.g., mainly at work, mainly in relation to one person)
the person can function more flexibly in some situations
change can be easier when feedback, support or less stress appears
Level of suffering and consequences
Personality disorders are usually associated with:
significant personal suffering (feelings of emptiness, chronic tension, sense of rejection)
recurrent crises (e.g., conflicts, breakups, job loss)
in some cases — risk of self‑destructive or self‑harmful behaviors
“Difficult character” can be troublesome but does not always lead to repeated serious crises.
It is often a matter of a temperament meeting the expectations of the environment.
Diagnosis versus colloquial opinion
Personality disorders:
require diagnosis by a specialist (psychiatrist, clinical psychologist)
are based on diagnostic standards (DSM‑5, ICD‑10/ICD‑11)
take into account interview, life history and coexisting disorders
“Difficult character”:
is a colloquial judgment dependent on norms in a given environment
often relies on single situations rather than a comprehensive view of functioning
can be a label that hurts more than helps to understand what is happening
How are personality disorders diagnosed?
Diagnosis of personality disorders is a process, not a single visit.
It typically includes:
a detailed psychiatric and psychological interview
analysis of life history (including family relationships, childhood experiences, past crises)
assessment of functioning in different roles (work, relationships, family)
differential diagnosis with other disorders (e.g., depression, anxiety disorders, addictions, autism spectrum disorders)
In practice structured interviews and questionnaires are often used, but the conversation and the diagnostic relationship remain key.
Dimensional models that describe, e.g. the level of stability of self‑image, emotion regulation capacity, and interpersonal style are gaining importance.
What do studies and meta‑analyses say?
Reviews and meta‑analyses indicate that personality disorders:
result from a combination of biological factors (e.g., genetic predispositions, temperament), psychological factors (e.g., attachment styles, coping mechanisms) and environmental factors (e.g., abuse, neglect, chronic stress)
are associated with an increased risk of other mental disorders (depression, anxiety disorders, addictions)
affect quality of life, occupational functioning and relationships
Meta‑analyses on psychotherapy for personality disorders show that:
various therapeutic approaches (e.g., emotion‑focused therapies, schema therapy, relational therapies) can reduce symptom severity
effects are usually gradual and require time
continuity of therapy, the therapeutic relationship and matching the form of work to the individual’s needs are important
Research suggests moving away from the mindset “that’s just who I am and nothing can be done” toward a model: “some traits are stable, but you can learn different responses, build relationships and take care of yourself.”
Ethical communication about treatment of personality disorders
In accordance with medical ethics and Polish law regarding communication about health services:
no promises of “cure” or “guaranteed results” are made
superlatives such as “the best method” or “the most effective therapy” are avoided
it is emphasized that the information in the text does not replace an individual consultation with a doctor or psychotherapist
In an evidence‑based approach one speaks about:
the possibility of symptom reduction
improvement in quality of life
better understanding of oneself and one’s reaction patterns
increased sense of control over decisions and relationships
Each treatment or psychotherapy process is individual and requires jointly set goals and realistic expectations.
A holistic view of personality disorders
Personality disorders are best understood in a biopsychosocial model — combining body, psyche and relational context.
A holistic approach does not mean abandoning scientific evidence but rather integrating it with work on:
emotion and stress regulation
lifestyle (sleep, physical activity, substances)
relationships and social support
work with the body (e.g., breathing techniques, yoga, relaxation training) as a complement to therapy
These methods do not replace treatment or psychotherapy but can support regulation of the nervous system, increase awareness of bodily signals and help with daily coping — always in agreement with a doctor or therapist.
When is it worth consulting a specialist about a “difficult character”?
Consider a consultation if:
relationship difficulties recur and lead to loss of important relationships or employment
you observe strong mood swings, feelings of emptiness, difficulty maintaining a stable self‑image
impulsive behaviors appear that you later regret
close ones express concern and previous attempts to “handle it” on your own have not helped
A consultation does not automatically mean a “lifelong diagnosis.”
It is primarily a space where you can safely examine yourself, your response patterns and, together with a specialist, consider next steps.
Gentle, ethical CTA:
If you feel the balance between a “difficult character” and a possible personality disorder worries you, you may consider an online or in‑person consultation with a psychiatrist or psychotherapist. It is one option that can help you better understand yourself and decide on possible further work.
FAQ — what are personality disorders?
Personality disorders — what are they in simple terms?
They are an entrenched, rigid way of thinking, feeling and behaving that makes life and relationships difficult and is present for years across situations.
They differ from “character traits” in that they cause marked suffering and consequences in many areas of life.
How is a personality disorder different from a “difficult character”?
A personality disorder meets criteria described in diagnostic classifications and is identified by a specialist based on a comprehensive picture of functioning.
“Difficult character” is a subjective label — it can signal that something needs attention but is not itself a diagnosis.
Are personality disorders hereditary?
You do not inherit a specific diagnosis, but certain predispositions (e.g., temperament, susceptibility to anxiety, impulsivity) that combined with life experiences can increase the risk of personality disorders.
Family and twin studies suggest contributions from both genetic and environmental factors.
Can personality disorders be treated?
It is possible to work on reducing symptom severity, improving emotion regulation and achieving more satisfying relationships.
Psychotherapy is usually the basis of treatment, and in some cases pharmacotherapy is also used — tailored individually and taking into account other coexisting difficulties.
This text is for information and education only, does not constitute medical advice and does not replace an individual consultation with a doctor or psychotherapist.
Decisions about diagnosis and treatment should always be made in direct contact with a specialist.
Sources:
American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders. 5th ed. 2013.
World Health Organization. International Classification of Diseases 11th Revision. 2019.
Cristea IA, Gentili C, Cotet CD, et al. Efficacy of psychotherapies for borderline personality disorder: A meta‑analysis. JAMA Psychiatry. 2017.
Storebø OJ, Stoffers‑Winterling JM, Völlm BA, et al. Psychological therapies for people with borderline personality disorder. Cochrane Database Syst Rev. 2020.
Tyrer P, Reed GM, Crawford MJ. Classification, assessment, prevalence, and effect of personality disorder. Lancet. 2015.
Paris J. Personality disorders: A biopsychosocial perspective. Am J Psychiatry. 2013.
Gunderson JG, Herpertz SC, Skodol AE, Torgersen S, Zanarini MC. Borderline personality disorder. Nat Rev Dis Primers. 2018.
