Wry Neck/Head Tilt in Rabbits
Rabbits sometimes develop a head tilt that gets progressively worse until they roll uncontrollably when they try to move. This condition is commonly known as "wry neck". There are many different diseases that can cause wry neck such as an ear infection, a parasite known as Encephalitozoon cunniculi (often just called E. cunniculi or encephalitozoonosis), and others. Depending on the cause, treatment is often quite successful if initiated early. Sometimes the treatment arrests the underlying disease but the rabbit continues to have a head tilt. Most of these learn how to live with their new view of the world and many gradually return to almost a normal posture.