[header] How to get rid of ear mites in a cat [title] Look for excess wax. [step] The ear mites provoke the lining of the ear canal to produce excessive amounts of wax. This wax is typically a dark brown/black color, and can sometimes look like waxy dirt in the ear. 
[substeps] A cat with healthy ears will have minimal earwax. If you see something that looks like coffee grounds or flecks of black dirt in the ear, this is a sign of a possible ear health problem.