Black spots on the back of cat ears may be due to the following reasons:

1. It may be melanin deposition: As the age increases, normal black spots appear. There is no problem in this situation;

2. Skin diseases: If the cat scratches the black spots on the back of the ears, and there is hair loss, scabs, etc. around the black spots, the skin may be infected by parasites, fungi and bacteria. Disease;

3. Ear mites: If there are black spots on the ears, you can also see a lot of reddish-brown or dark-brown ear wax in the ear canal. In addition, you can also see a lot of ear oil secreted, and there will be It smells sour. The cat’s ears need to be cleaned regularly with ear cleaning solution. If the cat is infected with parasites, the cat needs to be dewormed externally.

4. It may be impurities formed by the mixture of flea corpses, feces and bleeding caused by cats scratching their ears. Cats need to be dewormed regularly.