Why does my dog keep shaking its ears?

A dog shaking its ears often may be due to a few situations: a foreign object in the ear, water in the ear, or ear mite infection. When something is in the ear, the dog feels very uncomfortable and tries to shake it out. Also, if water gets in the ear, it may shake to fling the water out. In addition, dogs with ear mites often shake their ears. So when you notice frequent ear shaking, check the ears for any abnormality and respond in time.