Tympanic bullae ultrasonography is feasible in nonsedated healthy rabbits (Oryctolagus cuniculus).

Objective: To assess the feasibility of ultrasonography of the tympanic bullae (TB) in live, nonsedated rabbits (Oryctolagus cuniculus).

Animals: 40 healthy rabbits undergoing TB ultrasonography without sedation between September 2021 and May 2022.

Procedures: For each rabbit, fur was clipped over an area (3 X 3 cm) at the level of the angular process of each mandible, then 3 ultrasonographic planes of each TB were imaged via ventral approach, with measurement of the time taken to complete the examination.