Regarding the care of cat ears:

1. Cats must clean and dry their ears after each bath. When cats take a bath, water splashes around, and moisture easily enters the ears. Therefore, after bathing, be sure to clean the cat's ears with antibacterial liquid to avoid leaving moisture. Moisture in the ears may lead to ear diseases.

2. Everyday, you can use a cotton pad to moisten the ear cleaning and antibacterial liquid for pets, rub the entire ear for 10-15 seconds to fully dissolve the dirt, and then wipe it clean.

3. Some cats like to have their ears touched. When the cat owner does this, it can make them feel relaxed. You can rub and rub in circles behind the cat's ears.

4. Healthy cat ears have very little discharge and do not need to be cleaned every day. Just like human ears, they only need to be cleaned once a month or so.

Common ear diseases in cats:

1. Otitis externa. Otitis externa is mostly related to bacterial, fungal, and parasitic infections. Food-related and allergic diseases, abnormal keratinization, tumors, etc. may also cause recurrent and chronic otitis externa.

2. Ear mites. Most cases are parasitic in the ear canal, and a few cases can also appear on the head, neck and tail. It is a common and highly contagious disease in cats.

3. Polyps. Nasopharyngeal polyps are benign growths in cats’ internal auditory canal or Eustachian tube. They can cause middle ear canal infection in cats, and may cause symptoms of increased breathing and runny nose.