Rabbit sneezing: when to worry

The occasional sneeze from a rabbit is normal — just like in humans, a bit of dust or strong smell can trigger a reflex sneeze. But persistent sneezing, especially with discharge, is always worth investigating.

Normal rabbit sneezing

A single sneeze or occasional sneezing with no other symptoms — no discharge, eating normally, energetic — is almost certainly benign. Common innocent triggers: hay dust (especially with meadow hay), cleaning products used near the cage, strong air fresheners, candles, or cigarette smoke. Switching to a lower-dust hay and removing airborne irritants often resolves this immediately.

When sneezing becomes a problem

Sneezing is concerning when it is:
- Frequent and persistent (multiple times per hour)
- Accompanied by nasal discharge — clear, white, yellow, or bloody
- Occurring alongside other symptoms: eye discharge, reduced appetite, weight loss, difficulty breathing

The main causes

1. Pasteurella multocida (Snuffles)

The most common cause of bacterial respiratory infection in rabbits. Pasteurella is carried asymptomatically by many rabbits and becomes active under stress, illness, or immune suppression.

Signs: frequent sneezing, white or yellow nasal discharge (the characteristic "crusty" white fur around the nostrils), watery eyes, lethargy. In chronic cases, the infection spreads to the middle ear (causing head tilt) and jaw (causing dental abscesses).

Treatment: antibiotics — typically enrofloxacin (Baytril), trimethoprim-sulfa, or azithromycin for several weeks. Pasteurella can be managed but rarely fully eliminated; chronic carriers may need long-term management.

2. Dental disease

The roots of the upper molar teeth in rabbits sit very close to the nasal passages. Tooth root infections or overgrown roots can cause nasal discharge and sneezing without obvious oral signs. Diagnosis requires skull X-rays or CT scan.

3. E. cuniculi

The same parasite that causes head tilt can occasionally affect the nasal passages.

4. Foreign body

A small piece of hay lodged in the nasal passage causes sudden-onset violent sneezing — often with one nostril affected more than the other. Your vet can examine the nasal passages with an endoscope under anaesthesia.

5. Nasal polyp or tumour

Less common but should be considered in older rabbits with chronic one-sided discharge not responding to antibiotics.