I am not sure exactly what they are but our Gracie had them when we got her. We noticed this about a week later. Inside the ears you will see black or brown. Gracie itched at her ears all the time and caused them to bleed. The vet said the reason they itch is because they can hear them moving around. The vet put medicine on Gracie's back that would be absorbed through the skin to get rid of them. So could not give her a bath for a few days. Also gave us medicine to put inside her ears to muffle the noise to keep her from itching. Since treated we have had no problems.
Heather |