Kluger Nicolas
Departments of Dermatology, Allergology, and Venereology, Helsinki University Central Hospital, Helsinki, Finland.
Acta Dermatovenerol Alp Pannonica Adriat. 2017 Jun;26(2):29-32. doi: 10.15570/actaapa.2017.9.
Koebner phenomenon (KP) affects up to a third of patients with psoriasis and can occur on tattoos. Little is known about the extent of tattooing and its consequences among psoriatic patients. A survey was conducted to determine the demographics, motivations and attitudes towards tattoos, and complications among tattooed patients with psoriasis, and the impact on their body image.
Ninety Finnish patients completed an internet self-reported questionnaire in June 2016.
Fifty-two percent (48/90) had one tattoo or more (mean number of three tattoos, range 1-20). They were younger than non-tattooed patients (p = 0.001). Of these, 27.6% experienced a KP on their tattoos from 1 week to 15 to 20 years after tattooing. Among those, 30% reported an acute flare-up of psoriasis within the first weeks after tattooing. They were more likely to have a history of KP. Less than 7% reported a psoriasis flare-up on another part of the body after tattooing. Eighty-two percent stated that their tattoo(s) had a positive effect on their body image.
KP on tattoos is not particularly frequent in patients with psoriasis. Tattooing has a bolstering effect on body image and should not be a contraindication. However, patients need proper counseling before receiving tattoos.
同形反应（KP）影响多达三分之一的银屑病患者，且可发生于纹身部位。对于银屑病患者中纹身的程度及其后果，人们了解甚少。开展了一项调查，以确定纹身的银屑病患者的人口统计学特征、纹身动机和态度、并发症，以及纹身对其身体形象的影响。
2016年6月，90名芬兰患者完成了一份网络自填式问卷。
52%（48/90）的患者有一处或多处纹身（纹身平均数为三处，范围为1至20处）。他们比未纹身的患者更年轻（p = 0.001）。其中，27.6%的患者在纹身1周后至15至20年内，其纹身处出现了同形反应。在这些患者中，30%报告在纹身后头几周内银屑病急性发作。他们更有可能有同形反应史。不到7%的患者报告纹身后身体其他部位出现银屑病发作。82%的患者表示他们的纹身对其身体形象有积极影响。
银屑病患者纹身处出现同形反应并不特别常见。纹身对身体形象有增强作用，不应成为禁忌。然而，患者在纹身前需要接受适当的咨询。
