Abstract：
BACKGROUND: Trichotillomania and skin picking disorder have been characterized as body-focused repetitive behavior (BFRB) disorders (i.e., repetitive self-grooming behaviors that involve biting, pulling, picking, or scraping one\'s own hair, skin, lips, cheeks, or nails). Trichotillomania and skin picking disorder have also historically been classified, by some, as types of compulsive self-injury as they involve repetitive hair pulling and skin picking, respectively. The question of the relationship of these disorders to more conventional forms of self-injury such as cutting or self-burning remains incompletely investigated. The objective of this study was to examine the relationship of these two disorders with non-suicidal self-injury (NSSI).
METHODS: Adults with trichotillomania (n = 93) and skin picking (n = 105) or both (n = 82) were recruited from the general population using advertisements and online support groups and completed an online survey. Participants completed self-report instruments to characterize clinical profiles and associated characteristics. In addition, each participant completed a mental health history questionnaire.
RESULTS: Of the 280 adults with BFRB disorders, 141 (50.1%) reported a history of self-injury independent of hair pulling and skin picking. Participants with a history of self-injury reported significantly worse pulling and picking symptoms (p < .001) and were significantly more likely to have co-occurring alcohol problems (p < .001), borderline personality disorder (p < .001), buying disorder (p < .001), gambling disorder (p < .001), compulsive sex behavior (p < 001), and binge eating disorder (p = .041).
CONCLUSIONS: NSSI appears common in trichotillomania and skin picking disorder and may be part of a larger constellation of behaviors associated with impulse control or reward-related dysfunction.
METHODS: Adults with trichotillomania (n = 93) and skin picking (n = 105) or both (n = 82) were recruited from the general population using advertisements and online support groups and completed an online survey. Participants completed self-report instruments to characterize clinical profiles and associated characteristics. In addition, each participant completed a mental health history questionnaire.
RESULTS: Of the 280 adults with BFRB disorders, 141 (50.1%) reported a history of self-injury independent of hair pulling and skin picking. Participants with a history of self-injury reported significantly worse pulling and picking symptoms (p < .001) and were significantly more likely to have co-occurring alcohol problems (p < .001), borderline personality disorder (p < .001), buying disorder (p < .001), gambling disorder (p < .001), compulsive sex behavior (p < 001), and binge eating disorder (p = .041).
CONCLUSIONS: NSSI appears common in trichotillomania and skin picking disorder and may be part of a larger constellation of behaviors associated with impulse control or reward-related dysfunction.
摘要：
背景：Trichotillomania和皮肤采摘障碍的特征是以身体为中心的重复行为（BFRB）障碍（即，重复的自我修饰行为，包括咬人，拉,采摘,或者刮自己的头发，皮肤,嘴唇,脸颊,或指甲)。从历史上看，毛滴虫和皮肤采摘障碍也被分类，一些人，作为强迫性自我伤害的类型，因为它们涉及反复拔毛和剥皮，分别。这些疾病与更常规形式的自损伤如切割或自燃的关系问题仍未得到充分研究。这项研究的目的是检查这两种疾病与非自杀性自我伤害（NSSI）的关系。
方法：使用广告和在线支持小组从普通人群中招募患有毛滴虫病（n=93）和皮肤采摘（n=105）或两者（n=82）的成年人，并完成了在线调查。参与者完成了自我报告工具，以表征临床概况和相关特征。此外,每位参与者填写了一份心理健康史问卷.
结果：在280名患有BFRB疾病的成年人中，141（50.1％）报告了自伤史，与拔发和皮肤采摘无关。有自伤史的参与者报告了明显更差的拉拔和挑取症状（p<.001），并且明显更有可能同时发生酒精问题（p<.001）。边缘性人格障碍（p<.001），购买混乱（p<.001），赌博障碍（p<.001），强迫性行为（p<001），和暴食症（p=.041）。
结论：NSSI在毛滴虫病和皮肤采摘障碍中常见，可能是与冲动控制或奖赏相关功能障碍相关的更大行为群的一部分。
方法：使用广告和在线支持小组从普通人群中招募患有毛滴虫病（n=93）和皮肤采摘（n=105）或两者（n=82）的成年人，并完成了在线调查。参与者完成了自我报告工具，以表征临床概况和相关特征。此外,每位参与者填写了一份心理健康史问卷.
结果：在280名患有BFRB疾病的成年人中，141（50.1％）报告了自伤史，与拔发和皮肤采摘无关。有自伤史的参与者报告了明显更差的拉拔和挑取症状（p<.001），并且明显更有可能同时发生酒精问题（p<.001）。边缘性人格障碍（p<.001），购买混乱（p<.001），赌博障碍（p<.001），强迫性行为（p<001），和暴食症（p=.041）。
结论：NSSI在毛滴虫病和皮肤采摘障碍中常见，可能是与冲动控制或奖赏相关功能障碍相关的更大行为群的一部分。
