Diagnostic Value of Exclamation Mark Hairs

    January 1993 in “ Dermatology ”
    Chull‐Wan Ihm, Joseph Han
    TLDR Exclamation mark hairs are not exclusive to alopecia areata.
    The study compared exclamation mark (EM) hairs from 2 cases of trichotillomania and 9 cases of alopecia areata (AA) under light microscopy. It found that 77.8% of EM hairs from AA had frayed distal ends, while 82.2% of EM hairs from trichotillomania had blunt distal ends. The findings indicated that EM hairs, even those with frayed distal ends, were not exclusively indicative of AA, challenging the notion that they are pathognomonic for the condition.
    Discuss this study in the Community →

    Related Community Posts Join

    6 / 362 results

      community 30 Female, a month into 5% Minoxidil - is this normal?

      in Female  27 upvotes 1 month ago
      A 30-year-old woman experiencing rapid hair loss is using 5% Minoxidil, Saw Palmetto, vitamins, and Nizoral, but is advised to see a dermatologist as her symptoms may indicate a condition other than androgenetic alopecia, such as alopecia areata or a thyroid issue. Many suggest a biopsy and blood tests to determine the underlying cause.

      community My experience and a discourse on “DUPA”

      in Chat  46 upvotes 2 years ago
      How diffuse unpatterned alopecia (DUPA) is not an invitation to self-diagnose oneself with aggressive AGA and that seeking a specialized dermatologist may help people experiencing hair loss. Treatment options discussed include topical clobetasol propionate, oral minoxidil, and discontinuing finasteride.

      community 2.5 years on finasteride, minoxidil, and Nizoral - before and after

       501 upvotes 7 years ago
      The progress made by someone using finasteride, minoxidil and Nizoral for hair loss over a 2.5 year period, with before and after photos to show the results. Replies included encouragements and questions about the treatments used.

    Related Research

    3 / 3 results