Cats will not become deaf if their ears are dug deeply, because the structure of cat ears is different from that of humans. The inside of a cat’s ears is L-shaped. When we dig out a cat’s ears, we usually do not pick out the cat’s eardrum, so it is not Cats can become deaf due to digging. However, owners must control the force when cleaning the cat's ear canal. Improper force can cause damage to the skin of the cat's ears.