Sadistic Personality Disorder

Sadistic personality disorder (SDP) is characterized by an individual’s pattern of cruel, harsh, aggressive, intimidating, humiliating, and demeaning behavior. The disorder has been the subject of several studies and originally appeared in the DSM-III-R (American Psychiatric Association 1987).


Cluster Number:
Wiki Number: PW192
Diagnosis: Sadistic Peronality Disorder
US Patients:
World Patients:
Sex Ratio: M+;W
Age Onset:
Brain Area:
Symptoms: Pleasure at others enduring pain; show aggression and cruelty, using fear and a preoccupation with violence. Four identified types:
Progression: avoidant, negativistic, compulsive and borderline. Often linked with alcoholism.

Youtube Video:

Sadistic Personality Disorder and the Meaning of Cruelty

Amazon or Library Book: (Kindle and Audiobook Only)

Sadism and Sociopathy

Click the book to link or order from Amazon.


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Psychopathology among anabolic-androgenic steroid using and non-using female athletes in Norway
    by Morgan Scarth on September 28, 2022

    Anabolic-androgenic steroids (AAS) are primarily used to improve physical appearance and increase lean muscle mass. Due to their masculinizing properties, the majority of people using AAS are men; however, AAS use among females may increase with changing body ideals trending towards a more muscular appearance. AAS use among males have been associated with risk-taking behavior, and increased prevalence of personality disorders and psychopathology. As a result of low perceived prevalence and...

  • Mental and personality disorders in infertile women with polycystic ovary: a case-control study
    by Mostafa Ahmadi on January 6, 2021

    CONCLUSION: The scores of many mental and personality disorders are higher in infertile women with PCOS than in women without PCOS. Thus, clinicians should prioritize recognizing and treating psychological problems of infertile women with PCOS.

  • Personality, Schizophrenia, and Violence: A Longitudinal Study: The Second Wave of the VIORMED Project
    by Gioia Bottesi on October 15, 2019

    This study investigated the association between maladaptive personality traits, personality disorders (PDs), schizophrenia, and the risk of aggressive behavior. Ninety-four patients with a history of violence and 92 patients with no history of violence underwent a multidimensional baseline assessment. Aggressive behavior was monitored during a 1-year follow-up through the Modified Overt Aggression Scale. The Violent group scored significantly higher than the Control group on the Millon Clinical...

  • Enthusiastic Acts of Evil: The Assessment of Sadistic Personality in Polish and Italian Populations
    by Christopher Marcin Kowalski on October 15, 2019

    Subclinical sadism has received substantial attention in recent research as a trait that predicts a variety of malevolent behaviors. The objective of this study was to assess the 'psychometric robustness and portability' of the Assessment of Sadistic Personality (ASP). We examined the convergent and discriminant validity, and invariance of translated versions of the ASP within community samples of Polish and Italian individuals. The study included 568 individuals (340 women and 228 men) residing...