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, a recent report described the incidence of keloids in Africans with albinism. Keloids tend to have a genetic component, which means one is more likely to have keloids if one or both of their parents has 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. Genetics
People who have ancestry from Sub-Saharan Africa, Asia, or Latin America are more likely to develop a keloid. Among ethnic Chinese in Asia, the keloid is the most common skin condition. In the United States, keloids are more common in African Americans and Hispanic Americans than European Americans. Those who have a family history of keloids are also susceptible since about 1/3 of people who get keloids have a first-degree blood relative (mother, father, sister, brother, or child) who also gets keloids. This family trait is most common in people of African and/or Asian descent. Development of keloids among twins also lends credibility to existence of a genetic susceptibility to develop keloids. Marneros et al. (1) reported four sets of identical twins with keloids; Ramakrishnan et al.
Intralesional corticosteroid injections was introduced as a treatment in mid-1960s as a method to attenuate scaring.Pressure therapy has been use for prophylaxis and treatment of keloids since the 1970s.Topical silicone gel sheeting was introduced as a treatment in the early 1980s. References
Further reading

Roßmann, Nico (2005). Beitrag zur Pathogenese des Keloids und seine Beeinflussbarkeit durch Steroidinjektionen [Contribution to the pathogenesis of the keloid and its influence by steroid injections] (PhD Thesis) (in German). OCLC 179740918. Ogawa, Rei; Mitsuhashi, Kiyoshi; Hyakusoku, Hiko; Miyashita, Tuguhiro (2003). "Postoperative Electron-Beam Irradiation Therapy for Keloids and Hypertrophic Scars: Retrospective Study of 147 Cases Followed for More Than 18 Months". Plastic and Reconstructive Surgery. 111 (2): 547–53, discussion 554–5. doi:10.1097/01.PRS.0000040466.55214.35. PMID 12560675. S2CID 8411788. Okada, Emi; Maruyama, Yu (2007). "Are Keloids and Hypertrophic Scars Caused by Fungal Infection?". Plastic and Reconstructive Surgery. 120 (3): 814–5. doi:10.1097/01.prs.0000278813.23244.3f. PMID 17700144. == External links ==