Mutilation or maiming (from the Latin: mutilus) is severe damage to the body that has a ruinous effect on an individual's quality of life. It can also refer to alterations that render something inferior, ugly, dysfunctional, or imperfect. In modern times, the term has an overwhelmingly negative connotation. In 2019, Michael H. Stone, Gary Brucato, and Ann Burgess proposed formal criteria by which "mutilation" might be systematically distinguished from the act of "dismemberment", as these terms are commonly used interchangeably. They suggested that dismemberment involves "the entire removal, by any means, of a large section of the body of a living or dead person, specifically, the head (also termed decapitation), arms, hands, torso, pelvic area, legs, or feet". Mutilation, by contrast, involves "the removal or irreparable disfigurement, by any means, of some smaller portion of one of those larger sections of a living or dead person. The latter would include castration (removal of the testicles), evisceration (removal of the internal organs), and flaying (removal of the skin)." According to these parameters, removing a whole hand would constitute dismemberment, while removing or damaging a finger would be mutilation; decapitation of a full head would be dismemberment, while removing or damaging a part of the face would be mutilation; and removing a whole torso would be dismemberment, while removing or damaging a breast or the organs contained within the torso would be mutilation. Some ethnic groups practice ritual mutilation, for example, scarification, burning, flagellation, tattooing and circumcision, sometimes as part of a rite of passage. In some cases, the term may even apply to treatment of dead bodies, as in the case of scalping, when a person is mutilated after they have been killed by an enemy. Castration is also a form of mutilation. The traditional Chinese practice of foot binding is a form of mutilation.