What Would Cause A Dog's Ear To Swell - Waking up and seeing a dog ear swollen. Common causes of dog ear swelling include allergies, hematomas, infections, and foreign objects in the ear canal. Microscopic parasites that feed on the wax and oils inside your dog's ear,. The most common causes of ear swelling in dogs include:
Waking up and seeing a dog ear swollen. The most common causes of ear swelling in dogs include: Microscopic parasites that feed on the wax and oils inside your dog's ear,. Common causes of dog ear swelling include allergies, hematomas, infections, and foreign objects in the ear canal.