Epistemis

Canker sores / oral ulcers

Specialty: Gastrointestinal.

  • sores in the mouth
  • canker sores
  • stomatitis

Why it occurs

  • Recurrent aphthosis
  • Infection (herpes, candidiasis)
  • Deficits (iron, B12, folic)
  • Behçet's disease or IBD
  • Drug reaction

Initial workup

Oral inspection, blood count and ferritin/B12/folic; serologies if they are recurrent.

red flags

Single oral ulcer that does not heal in >2-3 weeks → rule out neoplasia; canker sores + genital ulcers → Behçet.

Standard management

  • Topical antiseptics/anesthetics — local relief
  • Topical corticosteroid — intense or recurrent canker sores

Educational guidance for study. It is NOT a prescription recommendation. The actual choice depends on the cause, the patient, and current guidelines.

PreviousTrepopnea
Area
Gastrointestinal
Listed causes
5
Treatment options
2
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