Editing Keloid (section)

==Cause==
Most skin injury types can contribute to scarring. This includes [[burn]]s, [[acne]] scars, [[chickenpox]] scars, ear piercing, scratches, surgical incisions, and vaccination sites.

According to the [[National Center for Biotechnology Information|US National Center for Biotechnology Information]], keloid scarring is common in young people between the ages of 10 and 20. Studies have shown that those with darker complexions are at a higher risk of keloid scarring as a result of skin trauma. They occur in 15–20% of individuals with sub-Saharan African, Asian, or Latino ancestry, significantly less in those of a Caucasian background. Although it was previously believed that people with albinism did not get keloids,<ref name="ReferenceA">{{cite journal | vauthors = Andrews JP, Marttala J, Macarak E, Rosenbloom J, Uitto J | title = Keloids: The paradigm of skin fibrosis - Pathomechanisms and treatment | journal = Matrix Biology | volume = 51 | pages = 37–46 | date = April 2016 | pmid = 26844756 | pmc = 4842154 | doi = 10.1016/j.matbio.2016.01.013 }}</ref> a recent report described the incidence of keloids in Africans with albinism.<ref>{{cite journal | vauthors = Kiprono SK, Chaula BM, Masenga JE, Muchunu JW, Mavura DR, Moehrle M | title = Epidemiology of keloids in normally pigmented Africans and African people with albinism: population-based cross-sectional survey | journal = The British Journal of Dermatology | volume = 173 | issue = 3 | pages = 852–854 | date = September 2015 | pmid = 25833201 | doi = 10.1111/bjd.13826 | s2cid = 20641975 }}</ref> Keloids tend to have a genetic component, which means one is more likely to have keloids if one or both of their parents have them. However, no single gene has yet been identified which is a causing factor in keloid scarring but several susceptibility loci have been discovered, most notably in Chromosome 15.<ref name="ReferenceA"/><ref>{{cite web | title = Keloids | date = 5 October 2010 | work = PubMed Health | publisher = U.S. National Library of Medicine | url = https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001852/ | archive-url = https://web.archive.org/web/20110216153149/https://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001852/ | archive-date = 16 February 2011 }}</ref>