Algolagnia Resource Type: Article Algolagnia is a sexual tendency which is defined by deriving sexual pleasure and stimulation from physical pain, often involving an erogenous zone.
Sadomasochism Resource Type: Article Sadism is pleasure in the infliction of pain or humiliation upon another person, while masochism is pleasure in receiving the pain. These practices are often related and are collectively known as sadomasochism as well as S&M or SM.