A large ulcer under the tongue lasting over 2 weeks may be due to trauma from a sharp tooth, nutritional deficiency, or rarely viral or other mucosal conditions. Since it's under the tongue and persistent, careful evaluation is warranted.
Next Steps
Consider blood tests: CBC,
Vitamin B12, Iron, Folate
Check for local trauma or irritation from teeth or dentures
Monitor size, any increase, pain, or difficulty in eating/speaking
Health Tips
Rinse your mouth with warm saline water. Avoid spicy food and citrus fruits which may delay healing.
⚠️ Word of Caution:
An ulcer in this area that persists beyond 2 weeks without pain should be clinically examined, especially to rule out non-healing causes or rarely pre-cancerous lesions.