What are the primary diagnostic criteria for hidradenitis suppurativa (HS)?

Updated: Aug 30, 2019
  • Author: Marina Jovanovic, MD, PhD; Chief Editor: William D James, MD  more...
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Primary positive diagnostic criteria are as follows:

  • History: Recurrent painful or suppurating lesions more than twice in 6 months
  • Signs: Involvement of axilla, genitofemoral area, perineum, gluteal area and inframammary area of women; presence of nodules (inflamed or noninflamed), sinus tracts (inflamed or noninflamed), abscesses, and scarring (atrophic, meshlike, red, hypertrophic or linear)

Suspicion of the diagnosis can be strengthened by other factors that are not, however, pathognomonic. [1, 3]

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