OCD and trichotillomania share many similarities, but the two disorders differ in their underlying psychobiology. These differences necessitate the use of differing treatment approaches. In a recent study, two groups of patients with OCD and TTM were compared. In the combined group, OCD symptoms were less common than in the OCD-only group. Interestingly, this finding was consistent across both studies, suggesting that the two disorders fall along different dimensions of the OCD spectrum. The main symptoms of trichotillomania are compulsions that cause hair pulling. These urges often coincide with strong…
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