Technically, choking is when something lodges in the larynx or trachea, preventing air flow. This can be nearly anything, even a small object such as a pen cap, bell, or thimble. Fortunately, choking is a rare occurrence in cats. Pieces of cat toys like small pompons or bells, splintered bits of bone, and other foreign objects can potentially get stuck in the larynx and cause choking. If your cat is conscious and not too upset, you can try looking in his mouth for any foreign object.