Automasochism is a subform of masochism.
Masochists achieve sexual arousal through their own pain. In the general form, the pain is inflicted by a second person, but there are people who do not need or want a second person. They inflict pain on themselves to produce pleasure.
This is often done by means of aids, whereby self-choking is probably the most dangerous of all practices. Accidents happen during such games again and again and since there is no second person in the room, rescue often comes too late.
Automasochism is also used as a substitute satisfaction, because a game partner is missing. | | 
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