元の
The urge to pull is the defining symptom of trichotillomania, so it makes sense that it would also be the worst. Without the urge, many who suffer from trichotillomania would not pull, although there are also many who pull out of habit. The urge to pull can be manifested as a tingling or itchy sensation in the skin where the hair follicle is, and doesn't go away until that area is pulled (some people only have to pull a few hairs, others pull handfuls). Trichotillomania doesn't have many symptoms, so the one major symptom is has is clearly the one everyone who suffers from it wishes they didn't have.