Sexual sadism involves acts in which an individual experiences sexual excitement from inflicting physical or psychological suffering on another individual.
Sexual sadism disorder is sexual sadism that causes significant distress, substantially interferes with daily functioning, harms another individual, or involves someone who has not given consent.
Sexual sadism is a form of paraphilia. Most individuals with sadistic tendencies do not have sexual sadism disorder.
Some amount of sadism and masochism is commonly play-acted in healthy sexual relationships, and mutually compatible partners often seek one another out.
For example, the use of silk handkerchiefs for simulated bondage and mild spanking during sexual activity are common practices between consenting partners and are not considered sadomasochistic.
Most sadists interact with a consenting partner, who may have sexual masochism (that is, who experiences sexual excitement from being humiliated, beaten, bound, or otherwise abused).
In these relationships, the humiliation and beating are simply acted out, with participants knowing that it is a game and carefully avoiding actual humiliation or injury. Fantasies of total control and dominance are often important, and sadists may bind and gag their partner in elaborate ways.
In contrast, sexual sadism disorder involves one or more of the following:
- Individuals are distressed by their behaviour or unable to function because of their behaviour.
- They take these acts to an extreme, sometimes causing severe bodily or psychological harm or even death.
- The acts involve partners who do not give their consent (non-consenting partners).
When practised with non-consenting partners, sexual sadism is considered a crime and is likely to continue until the sadist is apprehended.
Sexual sadism is not synonymous with rape, a complex mixture of sex and power over the victim.
Sexual sadism is diagnosed in fewer than 10% of rapists but in 37 to 75% of individuals who have committed sexually motivated homicides.
Sexual sadism is particularly dangerous in individuals who also have antisocial personality disorder.
Treatment of sexual sadism disorder is usually ineffective.
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