How do I know if my rabbit has a dental abscess and what does treatment involve?

Rabbit dental abscesses are serious, often recurring infections of tooth roots that cause visible facial swelling, drooling, and a complete loss of appetite — treatment almost always requires surgery and prolonged antibiotic therapy.

Rabbit tooth roots are extremely long and closely associated with the jaw bone, making abscesses both more common and more difficult to treat than in other species. The thick caseous (cheese-like) pus typical of rabbit abscesses cannot be simply drained like a fluid abscess in a dog or cat.

Early signs (often missed)
- Gradual weight loss over weeks
- Eating less hay but still eating soft foods
- Preference for tilting head to one side when chewing
- Excessive salivation or wet chin

Advanced signs
- Visible hard swelling on the jaw, cheek, or under the eye
- Warm, firm lump that does not fluctuate like a fluid-filled cyst
- Complete food refusal
- Eye discharge (upper tooth root abscesses can press on the nasolacrimal duct)

Which teeth are most affected
Cheek teeth (premolars and molars) are most commonly affected. Lower jaw (mandibular) abscesses present as a visible lump along the jaw line. Upper jaw (maxillary) abscesses may appear below the eye or at the side of the nose.

Diagnosis
Skull X-rays reveal tooth root involvement. CT scan is the gold standard — it shows the full extent of bone involvement and guides surgical planning. Standard oral exam without imaging significantly underestimates the problem.

Surgical options
- Tooth extraction with abscess debridement: removal of infected tooth and as much necrotic tissue as possible
- Marsupialization: converting the abscess cavity to an open wound that is packed and cleaned daily by the owner
- Jaw bone resection: in severe cases with osteomyelitis

Antibiotic protocols
Penicillin G by injection, azithromycin, or enrofloxacin — often for 6–12 weeks. Many cases require long-term or indefinite antibiotic management.

Log your rabbit's chewing behavior, hay consumption, and weight in Flovvi. Sudden weight loss combined with reduced hay intake is one of the earliest detectable signals of dental disease.