Personality Disorders

Personality disorders are clusters of psychiatric conditions consisting of behavioral, emotional and cognitive problems. An individual with a personality disorder has irrational and unhealthy perceptions of their selves and others. This could result in difficulties for the individual in establishing relationships, with social interactions and to their productivity. The problems with the individual’s behaviors and perceptions disrupt their personal and social relationships and cause significant distress in the individual’s life.

Amnestic Disorder

Amnestic disorder is a condition of loss of established past memories and the person’s inability to form new memories and learn new information. The main characteristics of amnestic disorder are ones that involve the memory processing with variable ranges of symptom severity. Amnestic Disorder consists of either an anterograde or retrograde amnesia. The former involves the inability of a person to retain new memories and learning new facts but is able to remember events in the past and know their... Read more about Amnestic Disorder

Anorexia Nervosa

Anorexia Nervosa is an eating disorder characterized by the refusal to maintain a healthy minimum body weight, by an intense fear of gaining weight and by a distorted perception about one’s body image. Anorexia Nervosa manifests in a maladaptive set of behaviors that is fueled by an overwhelming desire for thinness and can cause many medical problems (cardiac arrest, kidney damage, liver damage, etc.) and... Read more about Anorexia Nervosa

Antisocial Personality Disorder

Antisocial Personality Disorder is a chronic mental illness or disorder where the individual disregards the feelings and rights of others for their own personal gain without any feelings of guilt. Individuals who have Antisocial Personality Disorder are violent, untruthful, irresponsible, disrespectful, impulsive, and have aggressive... Read more about Antisocial Personality Disorder

Avoidant Personality Disorder

Avoidant Personality Disorder (APD) is a disorder characterized by extreme shyness, feelings of inadequacy and sensitivity to rejection. This condition is a lifelong pattern of behavior which is the source of work problems and relationships with the other people. Individuals having Avoidant Personality Disorder feel inferior to other people. They are often loners and see themselves as weak or unlikable; which is what prevents them from dealing with other people as they fear they will be rejected,... Read more about Avoidant Personality Disorder

Borderline Personality Disorder

Borderline Personality Disorder (BPD) is characterized by disturbed personality function with variable mood changes and mood swings. The disturbed sense of self of the person with the Borderline Personality Disorder often results in a negative impact on the psychosocial aspects of an individual; such as keeping good relationships at work, home, school, or other social environments. In extreme cases, Borderline Personality Disorder can lead to... Read more about Borderline Personality Disorder

Brief Psychotic Disorder

Brief Psychotic Disorder is a condition wherein an individual suffers from a psychotic attack which lasts at least a day but no longer than thirty days. These symptoms may include hallucinations, catatonic behavior, delusions, strangely inappropriate behavior, or peculiar... Read more about Brief Psychotic Disorder

Dependent Personality Disorder

Dependent Personality Disorder is a behavioral disorder that is characterized by an individual's pervasive psychological dependency on others. It was formerly called Asthenic Personality Disorder which was believed to be a kind of personality disorder rooted in childhood. Other experts call Dependent Personality Disorder a Borderline Personality Disorder that is marked with... Read more about Dependent Personality Disorder

Depersonalization Disorder

The Diagnostics and Statistics Manual of Mental Disorders, 4th Edition, Text Revision (DSM-IV-TR) includes depersonalization disorder as one of the dissociative disorders. These illnesses involve the separation of identity, perception, memory, and consciousness. It is a condition where an individual feels like a stranger to themselves. It involves a persistent or recurring feeling of detachment from one’s body. The Office of Rare Diseases (ORD) classifies depersonalization disorder as a rare disease. This... Read more about Depersonalization Disorder

Dissociative Identity Disorder

Dissociative Identity Disorder (DID) is a severe form of dissociative disorder which involves an individual taking on multiple personalities. Eventually, these identities will take control of the individual. Even though this personality disorder is not a result of direct psychological effects of a drug or general medical condition, this rare form of disorder has become quite common... Read more about Dissociative Identity Disorder

Histrionic Personality Disorder

The DSM-IV-TR characterizes histrionic personality disorder (HPD) as a Cluster B personality disorder. Conditions belonging to this group are characterized as dramatic, full of emotions, and exhibit erratic behavior. Aside from HPD, other personality disorders in this group include antisocial, borderline, and... Read more about Histrionic Personality Disorder

Impulse Control Disorder

Impulse Control Disorders are described by the inability to resist the desire or craving to do an action that is damaging to one's self or others. In 1838, Jean Etienne Esquirol proposed the term monomanic instinctives to describe behaviors characterized by irresistible urges without apparent motive. According to her, patients with Impulse-Control Disorders do not resist drives or enticements to do something harmful to themselves or others. These impulses, however, are not pre-mediated or planned in... Read more about Impulse Control Disorder

Intermittent Explosive Disorder

Intermittent explosive disorder is a behavioral disorder characterized by a violent expression of anger and rage. The individual with intermittent explosive disorder usually exhibits uncontrollable rage that is often inappropriate to the current situation. The manifestation of repeated episodes of violent and aggressive behavior is the main characteristics of intermittent explosive disorder. The person is capable of showing intermittent explosive behavior of attacking other people and their possessions... Read more about Intermittent Explosive Disorder

Narcissistic Personality Disorder

Narcissistic Personality Disorder is a condition characterized by self importance, extreme self involvement, self admiration, and a lack of empathy towards others. A Narcissist has arrogance and overconfidence and expects to be superior to others. Individuals with Narcissistic Personality Disorder show a pervasive pattern of grandiosity (the hallmark characteristic of Narcissistic Personality Disorder). Narcissistic Personality Disorder however is only diagnosed when the condition becomes persistent,... Read more about Narcissistic Personality Disorder

Obsessive Compulsive Personality Disorder

Obsessive Compulsive Personality Disorder is a condition characterized by perfectionism, control, rigidity, and an overconcern with work at the expense of establishing close interpersonal relationships. An individual suffering from Obsessive Compulsive Personality Disorder often cannot relax because of his or her preoccupation with details, productivity, and rules. Individuals suffering from OCPD are often seen as stingy, stubborn, self-righteous, and... Read more about Obsessive Compulsive Personality Disorder

Oppositional Defiant Disorder

Oppositional defiant disorder is considered as a psychiatric disorder characterized by hostility, disobedience, purposefully irritating, and bothering others combined with defiant behavior against the authority, which is not normally within the bounds of normal childhood behavior. The condition is also known as oppositional disorder. The major characteristics of oppositional defiant disorder that the majority of patients seek treatment for are the child’s uncontrolled aggressiveness and purposeful act to... Read more about Oppositional Defiant Disorder

Paranoid Personality Disorder

Paranoid Personality Disorder is a condition characterized by a long term, widespread, and unwarranted suspicion of other people, which can be hostile, demeaning, and threatening. The name "Paranoid Personality Disorder" is derived from the word “madness”. It is one of ten personality disorders identified in The... Read more about Paranoid Personality Disorder


Paraphilia is a condition that involves sexual behavior which is atypical from normal sexual arousal and gratification. A Paraphiliac has sexual desires that are characterized by extreme fantasies revolving around a particular object or on a particular act. Paraphilia is commonly seen in men. The sexual behavior of a Paraphiliac is viewed by the society as distasteful, abnormal, and unusual. The main problem of Paraphilias is the uncontrollable impulses of intense sexual fantasies, behavior, and urges... Read more about Paraphilias

Personality Disorder NOS

Personality disorder NOS (Not Otherwise Specified) is referred to by the DSM-IV-TR as disorders that do not fit into any personality disorder categories. These include: passive-aggressive personality disorder and depressive personality disorder; some behavior or particular trait such as oppositionalism, sadism, and masochism can also be classified in this... Read more about Personality Disorder NOS

Schizoid Personality Disorder

Schizoid Personality Disorder is a condition that involves the persistent withdrawal from social relationships and absence of emotional responsiveness in most instances. This condition is often referred to as a “pleasure deficiency” due to the seeming inability of the person suffering from Schizoid Personality Disorder to have joyful or pleasurable responses to life... Read more about Schizoid Personality Disorder


Schizophrenia is a chronic mental illness that involves a severe and highly disabling mental disorder of the brain. The mental disorder involved in Schizophrenia is one that is characterized by the person’s abnormal perceptions and expression of reality. The character of a Schizophrenic is manifested with auditory hallucinations, bizarre delusion, paranoid personality, a dysfunctional social and occupational life, with disorganized thinking and... Read more about Schizophrenia

Schizotypal Personality Disorder

Schizotypal Personality Disorder is a personality disorder that is characterized by a need for social isolation, odd behavior and thinking, and often unconventional beliefs. Individuals with Schizotypal Personality Disorder appear strikingly odd and often project magical thinking, peculiar notions, ideas of reference, illusions and... Read more about Schizotypal Personality Disorder

Shared Psychotic Disorder

In 1877, researchers Lasegue and Falret described shared psychotic disorder as transfer of delusions from one person to another. The two individuals that are usually involved are closely associated for a long time and typically live together in relatively social isolation. This rare psychiatric disorder is also referred to as folie à deux which literally translates as "a madness shared by two". The syndrome involves a symptom of psychosis, particularly a paranoid or delusional belief. When the same... Read more about Shared Psychotic Disorder