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    GlossaryExclamation Point Hairs

    short, broken hairs tapering at the base, indicating alopecia areata

    Exclamation point hairs are a characteristic sign of alopecia areata, an autoimmune condition that causes hair loss. These hairs are broken, short, and taper at the base, resembling an exclamation mark. They are often found at the edges of bald patches and indicate active disease progression.

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      Alopecia Areata: Overview and Insights from January 2018

      research Alopecia Areata: Overview and Insights from January 2018

      290 citations, December 2017 in “Journal of The American Academy of Dermatology”
      Alopecia areata is an autoimmune condition causing hair loss, influenced by genetics, stress, and diet, and may be prevented by a high soy oil diet.
      Office Diagnosis of Hair Shaft Defects

      research Office Diagnosis of Hair Shaft Defects

      33 citations, March 2006 in “Seminars in cutaneous medicine and surgery”
      The document explains how to identify different hair problems using a microscope.
      Alopecia Areata: An Autoimmune Disease Causing Hair Loss

      research Alopecia Areata: An Autoimmune Disease Causing Hair Loss

      16 citations, April 2011 in “Recent Patents on Inflammation & Allergy Drug Discovery”
      Alopecia Areata is an autoimmune disease causing hair loss in patches, often starting before age 20, and while some cases recover on their own, treatments include topical corticosteroids, minoxidil, and promising new methods like IL-31 antibodies and 308-nm Excimer laser therapy.
      A Patient with Diffuse Hair Loss

      research A Patient with Diffuse Hair Loss

      January 2015 in “Indian Dermatology Online Journal”
      The patient's hair loss is most likely due to diffuse alopecia areata.

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