This high-yield revision note on Oral Ulcers: Aphthous, Traumatic & Malignant Diagnosis Algorithm covers everything examiners typically test under Oral Medicine — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Ulcer Type | Feature | Typical Duration |
|---|---|---|
| Minor aphthous ulcer (RAS) | <1cm, round/oval, yellowish base with an erythematous halo, on non-keratinized mucosa | Heals in 7-14 days, no scarring |
| Major aphthous ulcer | >1cm, deep, may leave scarring | Weeks to months |
| Herpetiform aphthous ulcers | Multiple small, clustered ulcers resembling herpetic lesions but not viral | 1-2 weeks |
| Traumatic ulcer | Clear history of trauma (cheek/lip bite, sharp tooth, ill-fitting appliance); irregular border | Heals within days to 1 week once the cause is removed - if not, biopsy to rule out malignancy |
| Malignant ulcer (SCC) | Indurated, rolled/everted edges, non-healing beyond 3 weeks, fixed to underlying structures, often non-tender initially | Progressive, does not heal on its own |
| Behcet's disease | Recurrent oral + genital ulcers with uveitis (classic triad) | Recurrent episodes |
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