Medicine:Onychotillomania

From HandWiki
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Onychotillomania

Onychotillomania is a compulsive behavior in which a person picks constantly at the nails or tries to tear them off.[1] It is not the same as onychophagia, where the nails are bitten or chewed or dermatillomania, where skin is bitten or scratched.Onychotillomania can be categorized as a body-focused repetitive behavior in the DSM-5 and is a form of skin picking, also known as excorciation disorder.

It can be associated with psychiatric disorders such as depressive neurosis, delusions of infestation[2] and hypochondriasis.[3]

It was named by Jan Alkiewicz, a Polish dermatologist.[4]

The constant destruction of the nail bed leads to onychodystrophy, paronychia[5] and darkening of the nail.[6]

Some cases have been treated successfully with antipsychotics.[7]

One cheap solution suggested by researchers is to cover the proximal nail fold with a Cyanoacrylate glue. "The mechanism of action for improvement is probably related to the presence of an obstacle to picking."[8]

See also

  • Onychophagia

References

  1. Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Philadelphia: Saunders Elsevier. 2006. ISBN 978-0-7216-2921-6. 
  2. "Onychotillomania. 2 case reports". Dermatologica 171 (3): 200–2. 1985. doi:10.1159/000249420. PMID 4076493. 
  3. "Two Cases of Onychotillomania." (in Korean). Korean J Dermatol 44 (7): 855–857. July 2006. ISSN 0494-4739. 
  4. "Professor Jan Alkiewicz, MD, and his influence on 20th century dermatology and mycology". Clinics in Dermatology 27 (3): 317–322. 2009. doi:10.1016/j.clindermatol.2008.10.009. PMID 19368061. 
  5. Clinical Management of Psychodermatology. Berlin: Springer. 2009. p. 21. ISBN 978-3-540-34718-7. https://books.google.com/books?id=NHnEMdgKJbIC&lpg=PR3&ots=kAcrxvX9DD&dq=Onychotillomania&lr&pg=PA21#v=onepage&q=Onychotillomania&f=false. 
  6. "Nail biting and picking as a possible cause of longitudinal melanonychia. A study of 6 cases". Dermatologica 181 (2): 126–8. 1990. doi:10.1159/000247900. PMID 2242780. 
  7. "Onychotillomania treated with pimozide (Orap)". Acta Derm. Venereol. 62 (4): 364–366. 1982. PMID 6183881. 
  8. "Inexpensive solution for habit-tic deformity". Archives of Dermatology 146 (11): 1222–3. November 2010. doi:10.1001/archdermatol.2010.287. PMID 21079056. 

External links

Classification