Rabbit Head Tilt: E. cuniculi and Inner Ear Disease

What Is Head Tilt in Rabbits?

Head tilt (torticollis) in rabbits — where the head is held at an angle ranging from mild tilt to full rotation — is one of the most alarming symptoms rabbit owners encounter. It develops because of disruption to the rabbit's vestibular system (the balance and orientation system in the inner ear or brain). The two most common causes are Encephalitozoon cuniculi (a microsporidian parasite that infects the brain and kidneys) and Pasteurella multocida inner ear infection (otitis interna/media). Distinguishing them matters because treatment differs significantly.

First 3 Steps to Take at Home

Prevent injury immediately: A rabbit with head tilt will roll and circle uncontrollably, especially when startled. Pad the enclosure walls with blankets or towels to prevent self-injury. Remove all elevated surfaces to prevent falls.
Keep food and water accessible: A rabbit with severe tilt cannot access elevated feeders or bottles. Lower everything to ground level. Hand-feed if necessary.
Transport to the vet with padding: Wrap the rabbit gently in a towel with the head supported during transport. Sudden movement causes panic and rolling in affected rabbits.

When to Go to the Vet Immediately

Any sudden-onset head tilt is a same-day veterinary emergency
Severe rolling or inability to stay upright
Head tilt with rapid eye movement (nystagmus)
Not eating or drinking due to disorientation

Follow-Up Care Checklist

E. cuniculi treatment (fenbendazole for 28 days) should begin as soon as possible — earlier treatment improves outcomes
Pasteurella inner ear: long-term antibiotics, sometimes surgical bulla osteotomy
Anti-nausea medication (meclizine) helps manage the vestibular dysfunction
Many rabbits compensate well over weeks to months — full recovery is possible, especially with E. cuniculi if caught early

Track Recovery with TailRounds

Log head tilt severity (0–10), eating and drinking behavior, and rolling episodes daily using the TailRounds Daily Log. This recovery timeline is important for treatment adjustment.

Book a Vet Appointment

Head tilt in a rabbit is always urgent. Book at Happy Paws immediately — our exotic team can differentiate E. cuniculi from inner ear infection and begin treatment the same day.

Summary for Your Clinic Visit

Tell your vet when the tilt appeared (sudden vs. gradual), the severity, whether the rabbit is eating, and whether respiratory symptoms (sneezing) are also present.