human
My dog has been scratching at his ear a lot. Is there a reason for this?
assistant
Yes, your dog may have an ear infection. Ear infections can be caused by bacteria or fungi that grow in the ear canal and cause irritation. Symptoms of an ear infection include excessive scratching at the ears, shaking the head, rubbing the ears against furniture, or shaking the head from side to side. If you notice these symptoms, consult with your veterinarian to determine if your dog needs treatment.