Personality disorders are characterized by inflexible and maladaptive patterns of thinking, feeling, and behaving that cause significant distress or impairment.

Schizophrenia is a psychotic disorder characterized by hallucinations, delusions, disorganized speech, and impaired social and occupational functioning.

Generalized anxiety disorder is the most common anxiety disorder, characterized by excessive worry and anxiety that is difficult to control.

Major depressive disorder is a mood disorder characterized by a persistent feeling of sadness and loss of interest in activities, along with changes in appetite or sleep, feelings of worthlessness or guilt, and difficulty concentrating.

A panic attack is a sudden, intense fear that is accompanied by physical symptoms such as sweating, trembling, and shortness of breath.

Dissociative disorders are characterized by disruptions in memory, identity, consciousness, and perception. Depersonalization-derealization disorder, dissociative amnesia, and dissociative identity disorder are all types of dissociative disorders.

A phobia is an excessive fear of a specific object or situation that is out of proportion to the actual danger posed by the object or situation.

Obsessive-compulsive disorder is characterized by both obsessions (repetitive, intrusive thoughts) and compulsions (repetitive, ritualistic behaviors).

Borderline personality disorder is characterized by a persistent pattern of self-destructive behavior, impulsivity, and unstable relationships.

Eating disorders are characterized by disturbances in eating behavior that can lead to malnutrition, health problems, and psychological distress. Anorexia nervosa, bulimia nervosa, and binge eating disorder are all types of eating disorders.

Narcissistic personality disorder is characterized by a persistent pattern of grandiose thinking, need for admiration, and lack of empathy.

Post-traumatic stress disorder is a mental disorder that can develop after exposure to a traumatic event. Symptoms include flashbacks, nightmares, avoidance of reminders of the trauma, and difficulty sleeping or concentrating.

Antisocial personality disorder is characterized by a persistent pattern of antisocial behavior, such as aggression, deceit, and disregard for the rights of others.

Mood disorders are characterized by disturbances in mood, such as depression or mania. Major depressive disorder, bipolar disorder, and dysthymia are all types of mood disorders.

Histrionic personality disorder is characterized by a persistent pattern of attention-seeking behavior, such as exaggerated emotions, dramatic speech, and inappropriate sexual behavior.