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Uncommon causes

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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It should be noted that many of these causes are listed for completeness, and that it may be very rare to see mouth ulcers that are a result of these conditions.

  • gastrointestinal disease:
    • Crohn's disease
    • ulcerative colitis
    • coeliac disease

  • rheumatological disease:
    • Reiter's disease
    • Behcet's syndrome

  • infection:
    • viral:
      • herpes simplex
      • herpes zoster
    • bacterial
    • syphilitic
      • tuberculous

  • erythema multiforme

  • self-inflicted

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