Variations In Size

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Exclamation mark hairs are hairs that are quite short. Most exclamation mark hairs are 4-6 mm in length but rarely they can be longer depending on the amount of inflammation under the scalp beneath that specific hair. Here in this photo, we can see two exclamation mark hairs of different lengths - one is 3 mm and the other is nearly 15 mm in length. Exclamation mark hairs are seen in alopecia areata, trichotillomania and a few other conditions as well. They are important signs in alopecia areata as they indicate disease activity

Dr. Jeff Donovan is a Canadian and US board certified dermatologist specializing exclusively in hair loss. To schedule a consultation, please call the Whistler office at 604.283.1887

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