What is the prevalence of aphthous stomatitis (canker sore)?

Updated: Sep 25, 2020
  • Author: Ginat W Mirowski, MD, DMD; Chief Editor: William D James, MD  more...
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Answer

Recurrent aphthous ulcers are the most common oral mucosal disease in North America. They affect 20% of the population, with the incidence rising to more than 50% in certain groups of students in professional schools. Children from high socioeconomic groups may be affected more than those from low socioeconomic groups. [1] Note the following point prevalence and lifetime prevalence rates [2] :

  • Point prevalence in the pediatric population in the United States: 1.2-1.5%
  • Lifetime prevalence in the pediatric population in the United States: 40.18%

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