What are Ear Mites in Cats? Ear mites (otodectes cynotis mites) in cats are common. They are parasites that normally live in the ear canal and sometimes on the surface of the skin. Ear mites cause a condition known as otodectic mange. While not life-threatening, ear mites are contagious to other animals and can cause severe irritation to your feline companion. Signs & Symptoms of Ear Mites in Cats Symptoms of ear mites in cats are relatively easy to recognize if you know what to look for: Head-s