Cheek-biting disorder: another stereotypic movement disorder?

Development of the social concerns in individuals with body-focused repetitive behaviors (SCIB) scale

Body-focused repetitive behaviors (BFRBs) include such disorders as compulsive hair pulling, skin picking, nail biting, and cheek biting, which can lead to significant psychosocial impairment (American Psychiatric Association, 2013). As such, social concerns (i.e., concerns about how others view their behavior or affected body sites) are common in these individuals, and may significantly associate with BFRB symptomology (Snorrason et al., 2012). Currently, there are no measures to adequately assess social concerns specific to BFRBs. To this end, we developed a new self-report measure called the Social Concerns in Individuals with BFRBs (SCIB) that aimed to assess these concerns using two independent samples of individuals reporting elevated BFRB symptoms. Results showed that the overall level of social concerns reported on the SCIB significantly explained the variance in hair pulling and skin picking symptom severity even after controlling for the influence of other general social concern and emotional distress measures. Exploratory and confirmatory factor analyses provided psychometric evidence for the two-factor structure of the SCIB: (1) Concern about Physical Unattractiveness and (2) Concern about Social Disapproval, which were found to assess distinguishable aspects of BFRB-relevant social concerns. Overall, the findings suggest that the SCIB is a useful measure that can be used to evaluate social concerns in those with BFRB disorders.

Habit reversal therapy in the management of body focused repetitive behavior disorders

Body-focused repetitive behavior disorders are a group of disorders characterized by repetitive actions that include skin picking, hair pulling, nail biting, and other compulsions. These disorders can range from a common habit to a pathological disorder, that negatively impacts the psychiatric health and social well-being of an individual. Diagnosis can be made clinically, and monitored using different scales and assessments. Various treatments have been tried with differing successes. There are currently no first line curative medications for these disorders, but cognitive behavioral therapy has seen the most success in treatment. Specifically habit reversal therapy has shown the most promise in reducing the repetitive behaviors and symptoms seen in these disorders. Habit reversal therapy has also seen success through augmentation with additional therapies such as mindfulness, or treatment with a selective serotonin reuptake inhibitor in a patient with comorbid obsessive compulsive disorder. This paper aims to explore the efficacy of different treatment modalities specifically the effectiveness and approach of habit reversal therapy.

Stereotyped movement disorder in ICD-11

According to current proposals for ICD-11, stereotyped movement disorder will be classified in the grouping of neurodevelopmental disorders, with a qualifier to indicate whether self-injury is present, similar to the classification of stereotypic movement disorder in DSM-5. At the same time, the WHO ICD-11 Working Group on the Classification of Obsessive-Compulsive and Related Disorders has proposed a grouping of body-focused repetitive behavior disorders within the obsessive-compulsive and related disorders (OCRD) cluster to include trichotillomania and skin-picking disorder. DSM-5 has taken a slightly different approach: trichotillomania and excoriation (skin picking) disorder are included in the OCRD grouping, while body-focused repetitive behavior disorder is listed under other specified forms of OCRD. DSM-5 also includes a separate category of nonsuicidal self-injury in the section on "conditions for further study." There are a number of unresolved nosological questions regarding the relationships among stereotyped movement disorder, body-focused repetitive behavior disorders, and nonsuicidal self-injury. In this article, we attempt to provide preliminary answers to some of these questions as they relate to the ICD-11 classification of mental and behavioral disorders.

Nail picking disorder (onychotillomania): a case report

Nail picking disorder (onychotillomania) is characterized by excessive picking or pulling at one's own finger- or toenails. This condition has received scant research attention and may be related to other body focused repetitive behaviors such as pathological nail biting, skin picking and hair pulling. We present a case of a male client with a chronic and severe nail picking habit treated with acceptance-enhanced behavior therapy. The client showed clinical characteristics similar to other body focused repetitive behaviors and responded moderately well to the treatment.

Oral self-injury: an update

BACKGROUND

Self-inflicted oral injuries of organic origin are particularly common in certain diseases, syndromes, and systemic disorders. In this article, we discuss the characteristics of these oral lesions and their treatment.

LITERATURE SEARCH

The authors have reviewed the most relevant literature relating to oral self-injury through a search in textbooks and published articles included in the Medline database for the years 1970-2010, and selected published cases from the last two decades.

RESULTS

The majority of the literature on oral self-injury is in the form of case reports. Self-injury is particularly prevalent in patients with Lesch-Nyhan syndrome, a heterogeneous group of neurological disorders, congenital insensitivity to pain with anhidrosis, and mental retardation. It is most common in males in the early years of life, and the sites most frequently involved are the lower lip and the tongue. Therapeutic approaches in these patients have included psychological and pharmacological treatment, intraoral devices, and surgical procedures.

CLINICAL IMPLICATIONS

Intraoral devices are the best therapeutic option for self-injury of organic origin, although this approach is not free of complications. The current lack of standardized treatment protocols for oral self-injury means that therapy must be individualized.