If a dog's ear hematoma is not treated, there can be of course consequences. The consequences may vary based on individual circumstances. In the less dire cases, dogs are left with an unsightly scarred ear, in the most unfortunate cases, the dog may become predisposed to potentially severe ear infections. Not to mention, leaving a dog's health problem untreated is not a good practice. Veterinarian Dr. Ivana shares information about what happens if a dog's ear hematoma is not treated.