Lingual Callus: Causes, Symptoms, and Treatment

A lingual callus (focal hyperkeratosis) forms on the tongue from chronic mechanical irritation against teeth or dental appliances.

Causes

• Teeth grinding/clenching (bruxism)
• Malocclusion, sharp/broken tooth, ill-fitting denture
• Tongue thrusting, habitual rubbing
• Oral habits (pipe smoking, cheek biting)

Symptoms

• Localized thickened, white/yellowish patch on lateral tongue border
• May be asymptomatic, tender, or painful
• Can interfere with speech/swallowing if large

Treatment

• Remove Irritant: Dental adjustment (smooth sharp tooth, occlusal guard for bruxism, denture reline).
• Protective Measures: Night guard, habit reversal.
• Symptomatic Relief: Topical anesthetics (benzocaine), corticosteroids (triamcinolone paste).
• Surgical Excision: Rare; for persistent, symptomatic, or dysplastic lesions (biopsy first).

Differential

Rule out leukoplakia, lichen planus, squamous cell carcinoma, traumatic fibroma. Biopsy if uncertain or non-resolving after irritant removal.