How does the incidence of tinea capitis (scalp ringworm) vary by sex?

Updated: Feb 21, 2020
  • Author: Marc Zachary Handler, MD; Chief Editor: Dirk M Elston, MD  more...
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The incidence of tinea capitis may vary by sex, depending on the causative fungal organism. Microsporum audouinii –related tinea capitis has been reported to be up to 5 times more common in boys than in girls. After puberty, however, the reverse is true, possibly because of women having greater exposure to infected children and possibly because of hormonal factors. In infection by M canis, the ratio varies, but the infection rate usually is higher in boys. Girls and boys are affected equally by Trichophyton infections of the scalp, but in adults, women are infected more frequently than are men.

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