What are the sexual predilections of aphthous ulcers?

Updated: Feb 25, 2019
  • Author: Michael C Plewa, MD; Chief Editor: Russell W Steele, MD  more...
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Aphthous ulcers (canker sores) may be slightly more common in female individuals than in male individuals. Outbreaks occur most frequently during ovulation or before menstruation, and remissions are common during pregnancy.

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