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I started opening up about my trichotillomania on social media and I got so many messages from people who also suffer from it.

Matthew Selt has been a professional snooker player since 2000 - but for most of that time, he has been struggling with trichotillomania.

The "Life & Beth" creator and star recently revealed that she has "trichotillomania."

A few other children also experienced trichotillomania, or hair pulling, because of heightened anxiety.

Sampaio also opened up about facing trichotillomania, a condition that gives her the urge to pull or pluck her hair.