Cats' reactions to mite infestations range. Some cats Do not appear bothered by even numerous mites, but other cats itch intensely with only a little amount. The previous might be hypersensitive to mite saliva, so just a couple mites in the ear canal might cause discomfort. Also, mites stimulate the wax-making glands inside the ear. The buildup of wax can then cause inflammation and bring on more discomfort with the cat. Just one symptom of the mite infestation is a buildup of dark wax that looks one thing like Click This Link coffee grounds.}