This narrative review of the current literature on personality disorders summarizes research published in 2024-2026. Many of the studies have compared the alternative and categorical models of personality disorders that favor the alternative model on personality functioning and maladaptive personality traits for its reliability and validity. Although obsessive compulsive disorder (OCD) has been considered the most common personality disorder, borderline personality disorder (BPD) has been the most frequently reported personality disorder in this current literature. The primary features that have been reported for BPD include hypo mentalizing and epistemic mistrust. Those with BPD have been slower to achieve remission or recovery than other personality disorders. Comorbidities of personality disorders include alexithymia (difficulty identifying and expressing emotions) and anxiety disorders. Negative effects of personality disorders include a focus on the past, social media addiction, sexual distress, violence, crime, and mental disorders in offspring. Risks/predictor variables include adverse childhood events, insecure attachment styles, defense mechanisms and self-mentalizing deficits. Genetic studies estimated the heritability of personality disorders at 30 to 60%. These studies have implicated genes involved in neurotransmitter regulation such as those for serotonin transporters and dopamine receptors. Methodological limitations of this literature include the limited focus and design of the studies, the almost exclusive sampling of clinical populations and the limited comorbidity studies.