First of all, a healthy cat's ear canals should be dry and pink, if you find a cat's ear canals are dirty, then the cat is most likely suffering from an ear canal disease, and it is recommended that you can go to the hospital first to confirm.

If you are cleaning your cat's ear canal at home, you can use a special care product for the pet's ear canal. First, take a small amount of ear protection drops on a cotton ball and gently wipe the outer ear canal to prevent dirt from flowing into the ear, and then gently rub the ear protection drops into the ear canal for two to three minutes. But the serious ones are still recommended to go to the hospital.