What is the global prevalence of aphthous ulcers?

Updated: Feb 25, 2019
  • Author: Michael C Plewa, MD; Chief Editor: Russell W Steele, MD  more...
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The worldwide incidence is similar to that in the United States. Aphthous ulcers (canker sores) are found in all ethnic groups and geographic locations. The prevalence may be increased in affluent countries and socioeconomic classes.

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