This may be a tumor, hyperplasia, or caused by a parasite bite. Skin diseases can also cause pimples on the dog's ears. Parents are best to take the dog to the hospital for a comprehensive examination. Find out the cause of hard bumps on your dog’s ears. Don’t ignore it, as you may miss the best opportunity for treatment.

Tip:

Like people, dogs can also develop tumors. If parents find unknown lumps on their dogs, they should seek medical advice promptly to determine the nature of the lumps.