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Updated: 2017-09-02T04:04Z
Several acrochorda in the skin of the lower neck, soft consistency, the bottom acrochordon taking a pedunculated shape
Classification and external resources
(congenital Q82.8)
Patient UKAcrochordon
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Acrochordon, pedunculated, fibrous mass covered with epithelium of varied thickness, H&E stain

An acrochordon (plural acrochorda; also skin tag,[1] skin polyp, fibroepithelial polyp,[2] fibrovascular papilloma, soft fibroma, fibroma molle) is a small benign tumor that forms primarily in areas where the skin forms creases, such as the neck, armpit, and groin. They may also occur on the face, usually on the eyelids. Perianal skin tags can be associated with Crohn's disease. Acrochorda are generally harmless and painless, and usually do not grow or change over time.[citation needed] Though tags up to a half-inch long have been seen,[3] they are typically the size of a grain of rice. The surface of an acrochordon may be smooth or irregular in appearance and is often raised from the surface of the skin on a fleshy stalk called a peduncle. Microscopically, an acrochordon consists of a fibrovascular core, sometimes also with fat cells, covered by an unremarkable epidermis. However, tags may become irritated by shaving, clothing, jewellery, or eczema.

Skin tags are thought to occur from skin rubbing up against skin, since they are so often found in skin creases and folds.[3] Studies have shown existence of low-risk HPV 6 and 11 in skin tags, hinting at a possible role in its pathogenesis.[4] Acrochorda have been reported to have a prevalence of 46% in the general population.[5] A causal genetic component is thought to exist.[6] They also are more common in women than in men.[7] Rarely, they can be associated with the Birt–Hogg–Dubé syndrome, acromegaly, and polycystic ovary syndrome.[8]

Skin tags may serve as a marker for those people whose carbohydrate metabolism is impaired and for those who may be at risk for diabetes mellitus type 2, although such a link has not been shown.[9] Elevated blood sugar and insulin increase the incidence of skin tags through an unknown mechanism.[10]


Because tags are benign, treatment is unnecessary unless the tags become frequently irritated or present a cosmetic concern. If removal is desired or warranted, then a dermatologist, general practitioner, or similarly trained professional may use cauterisation, cryosurgery, excision, or surgical ligation to remove the acrochorda.[3]

See also


  1. ^ "Cutaneous skin tags: MedlinePlus Medical Encyclopedia". Archived from the original on 11 January 2011. Retrieved 18 January 2011. 
  2. ^ Libby Edwards; Peter J. Lynch. Genital Dermatology Atlas. Lippincott Williams & Wilkins, 2010. p. 209. Retrieved 18 January 2011. 
  3. ^ a b c "Cutaneous skin tag". Medline Plus. Retrieved 20 August 2012.
  4. ^ Gupta S, Aggarwal R, Gupta S, Arora SK (2008). "Human papillomavirus and skin tags: Is there any association?". Indian J Dermatol Venereol Leprol. 74: 222–5. doi:10.4103/0378-6323.39585. 
  5. ^ "Acrochordon ". Medscape Reference. Retrieved 20 August 2012.
  6. ^ "Acrochordons - Symptoms & Treatment". Retrieved 28 November 2011. 
  7. ^ "Acrochordons in women". 30 September 2011. Retrieved 28 November 2011. 
  8. ^ "Acrochordon (Skin Tag, Fibroepithelial Polyp)". 1 December 2008. Retrieved 28 November 2011. 
  9. ^ Kahana M, Grossman E, Feinstein A, Ronnen M, Cohen M, Millet MS (1 December 1987). "Skin tags: a cutaneous marker for diabetes mellitus.". Acta Derm. Venereol. 67: 175–7. PMID 2438887. 
  10. ^ Tamega Ade A; Aranha AM; Guiotoku MM; Miot LD; Miot HA (1 January 2010). "Association between skin tags and insulin resistance". An Bras Dermatol. 85: 25–31. PMID 20464083. 
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