Reasons why dogs scratch their ears: First, ears with fungal, bacterial, parasitic infections, mosquito bites, etc. lead to itchy ears and dogs will scratch. Secondly, itching caused by ear injuries from fighting or knocking guns will also make your dog scratch its ears. It is important to take your dog to the hospital in time to check and confirm the diagnosis, and treat it with medication and wearing an Elizabethan collar to avoid your dog scratching itself.
