Trichotillomania is classified under the Obsessive-Compulsive and Related Disorders section of the Diagnostic and Statistical Manual for Mental Disorders, Fifth Edition (DSM-5). To meet the criteria for trichotillomania, one must (a) pull out hair resulting in hair loss, (b) have made attempts to stop pulling, (c) experience notable decreases in functioning as a result of the pulling, and (e) not pull as a result of another condition or medical disorder. The prevalence of the disorder is between 0.5% and 3%, and it occurs across one’s lifespan. Pulling can occur from any site, but the crown of the head is the most common site. Clinically, it is useful to note that some areas are more noticeable such as eyelashes, whereas pulling from arms is easy to ...