[header] How to diagnose trichotillomania [title] Notice hair pulling locations. [step] Trichotillomania is characterized by a persistent urge to pull out one's body hair. Trichotillomania involves pulling out hair, yet is not exclusive to the hair on one's head. 
You may notice the person pulling out eyelashes, eyebrows, pubic hair, or other body hair. [substeps] Do notice the person pulling at body hair? Do you notice times when the person pulls all the hair from his eyebrows or eyelashes? [title] Observe patchy areas or bald spots.