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Personality Disorders: Borderline, Narcissistic, Schizoid and Obsessive-Compulsive - Practical Explanations

What are personality disorders?

Personality disorders are enduring patterns of behaviour, cognition and emotional functioning that deviate significantly from the expectations of the individual's culture, appear in late adolescence or early adulthood and cause suffering or functional impairment. These patterns affect how the person relates to themselves, others and the world around them.

Why are personality disorders grouped together?

For clinical purposes, personality disorders are organised into three groups (clusters):

  • Cluster Aeccentric or strange behaviour (schizoid, schizotypal)
  • Cluster Bdramatic, emotional or erratic behaviour (e.g. borderline, narcissistic)
  • Cluster Canxious or fearful behaviour (e.g. obsessive-compulsive)

This division helps to understand the “family” of symptoms, but each person is unique and there can be overlap between types.

Borderline Personality Disorder

What characterises the borderline type?

This type shows emotional instability, intense and unstable relationships, fear of abandonment, chronic feelings of emptiness, impulsiveness and sometimes self-injurious behaviour.

Typical signs and behaviours

  • Rapid mood swings
  • Idealisation and belittling of close people
  • Impulsivity in areas such as spending money, sex or substance abuse
  • Persistent feeling of inner emptiness
  • Self-injurious behaviour

Practical considerations

Recognising these signs allows early referral for treatment, something that can significantly improve the prognosis.

Narcissistic Personality Disorder

What is the narcissistic type?

People with this pattern tend to have fragile self-esteem, a constant search for admiration, a lack of empathy for others and beliefs in superiority.

Signs and behaviour

  • Fantasies of unlimited success, power or beauty
  • The need to be recognised as special
  • Exploitation of others to achieve personal ends
  • Envy or the conviction that others envy you

Practical considerations

In the clinical context, the challenge lies in both diagnosis and adherence to treatment, as the individual may have difficulty recognising their own vulnerabilities.

Schizoid Personality Disorder

What defines the schizoid type?

This type is characterised by a preference for solitary activities, little desire for close relationships, little emotional expression and social withdrawal.

Signs and behaviour

  • Indifference to praise or criticism
  • Little or no desire for intimate relations
  • Leisure activities almost always solitary
  • Affective and emotional coldness

Practical considerations

These people may only seem “reserved”, but that doesn't mean they're fine, there may be emotional suffering that goes unnoticed.

Obsessive-Compulsive Personality Disorder (OCPD)

Difference between PPOC and POC

PPOC is an enduring pattern of perfectionism, rigidity, need for control and inflexibility. POC is an anxiety disorder with specific obsessions and compulsions.

Signs and behaviour

  • Excessive preoccupation with rules, lists and organisation
  • Perfectionism that makes it difficult to complete tasks
  • Difficulty delegating tasks
  • Rigidity in moral or ethical values

Practical considerations

Perfectionism and rigidity can limit quality of life and make it difficult to adapt in personal and professional environments.

Causes and Contributing Factors

Main factors

  • Genetics and heredity
  • Early life experiences (trauma, neglect, parenting style)
  • Combined biological and environmental factors

Why it takes so long to appear

Personality patterns become more evident in late adolescence or adulthood, when the personality structure is more consolidated.

Diagnosis and clinical assessment

Elements of the diagnosis

  • Assessment of life history and emotional functioning
  • Identification of persistent and dysfunctional patterns
  • Exclusion of other mental health conditions

The importance of early intervention

The earlier the disorder is identified, the better the chances of adaptation and treatment.

Treatment and possible approaches

Psychotherapy

  • Dialectical behaviour therapy
  • Cognitive-behavioural therapy
  • Schema-focused therapy

Medical treatment

Medication can be used to treat associated symptoms, such as anxiety or depression, but not the personality disorder itself.

Life strategies and support

  • Education about the disorder
  • Development of social skills
  • Ongoing family or psychosocial support

Living with a personality disorder: what to know

  • Recognise that the disorder is not the person's fault
  • Improvement is possible with specialised treatment and support
  • The changes are gradual, but they can bring greater stability and well-being

When to seek specialised help?

  • If there is persistent emotional distress
  • When there is an impact on relationships, work or self-esteem
  • In case of impulsive, self-injurious or self-destructive behaviour

Conclusion

Personality disorders are complex but treatable conditions. With the right diagnosis, professional support and the active involvement of the person, it is possible to achieve greater emotional stability and a better quality of life.

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Dr Alexandra Azevedo

Training: University of Barcelona
No. of doctors: 71409

Biography

Dr Alexandra Azevedo graduated in Medicine from the University of Barcelona in 2015, where she subsequently specialised in General Practice. During her training, she developed a strong interest in the approach to chronic pain, having completed an integrated master's degree in Medicine and Surgery with clinical research into pain management. Her professional experience includes several years of clinical practice in Spain, particularly in Catalonia, where she has had contact with a wide variety of pathologies and challenges, both in the emergency department and in primary healthcare.

She currently works as a family doctor at the ULS Braga. She has been a member of the medical-surgical emergency team at Vila Nova de Famalicão Hospital and has worked as a guest lecturer at the Nursing School of the University of Minho, teaching anatomy and physiology of the circulatory, respiratory and digestive systems.

Her main clinical interests include emergency medicine, chronic pain, depression and anxiety, as well as preventive medicine and the control of vascular risk factors. She is also dedicated to anti-smoking counselling and weight loss counselling, helping her patients to adopt healthier lifestyle habits. Her approach to care is based on a holistic vision, considering health as a balance between physical and psychological well-being.

Dr Alexandra stands out for her humanism and her ability to offer quick and effective solutions to minor problems, ensuring that her patients feel well looked after. At Médico na Net, she sees an opportunity to bring healthcare to more people in an accessible and convenient way.

Passionate about music and travelling, she loves getting to know different cultures and lifestyles, which enriches her view of the world and her medical practice. For her, medicine is not just a profession, but a real commitment to the well-being of the people she cares for. As she likes to say: "Health is the balance between physical and psychological well-being.