What is the prevalence of diabetes mellitus in alopecia areata?

Updated: Aug 06, 2020
  • Author: Chantal Bolduc, MD, FRCPC; Chief Editor: Dirk M Elston, MD  more...
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Diabetes mellitus was found to be more common in control subjects (1.4%) than in patients with alopecia areata (0.4%). [19] The occurrence of alopecia areata may protect against the appearance of type I diabetes mellitus. However, the incidence of type I diabetes mellitus was significantly higher in relatives of patients with alopecia areata compared with the general population.

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