Kontoes Paraskevas, Vlachos Spiros, Konstantinos Marayiannis, Anastasia Loupatatzi, Myrto Savva
LaserLight Clinic, Athens, Greece.
J Am Acad Dermatol. 2006 Jan;54(1):64-7. doi: 10.1016/j.jaad.2005.09.034. Epub 2005 Dec 2.
Laser hair removal is a relatively safe procedure with limited side effects. Hair induction has been previously scarcely reported.
We sought to report the incidence of this strange side effect in a large number of patients treated for hair removal and to follow its course and treatment.
We conducted retrospective analysis of the files of all patients who underwent laser hair removal during the time period from May 1998 until May 2005 in a private institution in Athens, Greece.
Hair induction occurs predominantly on the face and neck of female patients of Mediterranean ancestry with darker skin types. The percentage is quite low (4.5%). Laser treatment of the induced hair reduces the problem.
No control groups could be obtained in this study. Furthermore, the natural course of hair induction could not be studied because it was always treated or patients were lost to follow-up.
Hair induction is a rare side effect of laser hair removal occurring in selected populations and body areas; however, it responds well to laser treatments.
激光脱毛是一种相对安全的治疗方法，副作用有限。毛发增多此前鲜有报道。
我们试图报告大量接受脱毛治疗的患者中这种奇怪副作用的发生率，并跟踪其发展过程及治疗情况。
我们对1998年5月至2005年5月期间在希腊雅典一家私立机构接受激光脱毛治疗的所有患者的病历进行了回顾性分析。
毛发增多主要发生在地中海血统、皮肤较黑的女性患者的面部和颈部。发生率相当低（4.5%）。对增多的毛发进行激光治疗可缓解该问题。
本研究无法设立对照组。此外，由于毛发增多总是得到治疗或患者失访，因此无法研究其自然发展过程。
毛发增多是激光脱毛在特定人群和身体部位出现的罕见副作用；然而，它对激光治疗反应良好。
