incidence

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The condition is most common in teenagers with about 60% affected sufficiently to seek treatment. The peak incidence is seen in females aged 14-17 years and in males aged 16-19 years (1).

This age group is not affected exclusively:

  • about 5% of women and 1% of men aged 25-40 years either continues to get acne lesions or they may develop late-onset acne. The prevalence in this age group is believed to be increasing (1).

Presentation in infancy occurs rarely.

Reference:

Last reviewed 08/2021