Cats may lose hair on their ears because their skin sometimes has problems that cause the hair to fall out. This condition is usually caused by a skin infection, skin disease, parasitic infection, or allergies. In these cases, your cat's skin may become red, itchy, or blistered, causing hair loss. If you notice hair loss on your cat's ears, it's recommended that you take her to the vet. Your veterinarian will examine your cat, determine the cause, and provide appropriate treatment.
If your cat is found to have a parasitic infection, it may need to be treated with medication. If your hair loss is due to a skin condition or allergy, you may need to treat it with antibiotics or anti-allergy medications. In addition to treatment, in order to prevent cat ear hair loss, you can also try to take some preventive measures, such as regularly feeding the cat high-quality dog food, keeping the environment around the cat dry and tidy, and avoiding excessive washing of the cat's hair. These measures will help keep your cat's skin healthy and prevent hair loss.