The part of a dog’s ear you can see is only the beginning of a much larger system. Whether upright or folded, the ear flap is called the pinna. Knowing that name can make a conversation with a veterinarian more precise when you notice a change.
The Merck Veterinary Manual’s guide to canine ear structure distinguishes the outer ear, including the pinna and ear canal, from the middle and inner ear. The deeper structures contribute to hearing and balance. A normal-looking flap therefore does not establish that everything beyond it is normal.
Describe the place you can actually observe
“The left ear flap looks swollen” is a more specific observation than “the whole ear is blocked”. Likewise, note whether a change appears on the outer surface, near the entrance to the canal or in the dog’s behaviour. Do not assign an internal location that you cannot see.
Our suggested observation note records the side, when the change began, any head shaking or scratching, and whether ordinary handling seems uncomfortable. If it can be done without upsetting the dog, a photograph of the visible change may help the veterinary team understand what you mean.
Movement is not a home hearing test
A dog can move its ear flaps as it attends to its surroundings. VCA’s explanation of head tilting discusses how movable pinnae can help orient to sound. That does not turn a single ear position into a reliable measure of hearing ability or a complete explanation of the dog’s mood.
Avoid making loud noises beside the head or repeatedly provoking a response. If you suspect a hearing change, explain the everyday situations in which you noticed it and ask about an appropriate assessment.
Do not push cotton buds or other objects into the canal to investigate. Pain, discharge, persistent head shaking or a new balance problem needs veterinary advice. Clear descriptions of the visible part help the professional decide what to examine; they do not replace that examination.