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In trichophagia, people with trichotillomania also ingest the hair that they pull; in extreme (and rare) cases this can lead to a hair ball (trichobezoar). [10] Rapunzel syndrome is an extreme form of trichobezoar in which the "tail" of the hair ball extends into the intestines and can be fatal if misdiagnosed. [10] [18] [19] [20]
Rapunzel syndrome is an extremely rare intestinal condition in humans resulting from ingesting hair (trichophagia). [1] [2] The syndrome is named after the long-haired girl Rapunzel in the fairy tale by the Brothers Grimm. Trichophagia is sometimes associated with the hair-pulling disorder trichotillomania. [3]
Marschall points out that although it’s a self-soothing behavior, people with trichotillomania are not choosing to pull their hair out — the behavior is a symptom of mental health issues.
Trichophagia is most closely associated with trichotillomania, the pulling out of one's own hair, and thus any symptoms of trichotillomania could be predictive of trichophagia and must be ruled out. Rarely, persons with trichophagia do not exclusively have trichotillomania and instead will eat the hair of others. [9] [5]
Some people will engage in self-cannibalism as an extreme form of body modification, for example, by ingesting parts of their own skin. [6] In very rare cases, people have eaten a part of their own body (such as a foot) that had to be amputated for medical reasons; such acts may be motivated by curiosity or a desire to attract attention.
Trichology is the study of the hair and scalp. [1] The term derives from Ancient Greek θρίξ (thríx), "hair" [2] and -λογία -logia.In most jurisdictions the title of a trichologist, not the field of trichology, is considered a para-medical discipline.
Example of the sounds and motions a common housecat makes when it is coughing up a hairball. A 10 cm (3.9 in) cat hairball. A hairball is a small collection of hair or fur formed in the stomach of animals, and uncommonly in humans, that is occasionally vomited up when it becomes too big.
Hypertrichosis (better known as Werewolf Syndrome) is an abnormal amount of hair growth over the body. [1] [2] The two distinct types of hypertrichosis are generalized hypertrichosis, which occurs over the entire body, and localized hypertrichosis, which is restricted to a certain area. [1]
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