Why does my cat have new patches in his ears? Should I worry?

Unfortunately, without seeing it in person, I can't say for certain what is causing this rough and bumpy patch beneath Shiki's ear. I can say that if she is scratching below her ear, that can be a sign of an ear infection, and I do think she should see a vet for it. Ear infections in cats can be caused by ear mites, yeast, or bacteria, and can only be treated by medications from the vet. I recommend having Shiki seen by a vet tomorrow to diagnose if she does have an ear infection, and to get medications to treat it if she does. It's important to treat any ear infection promptly, as leaving it untreated can lead to hearing loss.

Yes, he may have ear mites or ear canal infection. Cats with ear mites or ear infection usually scratch the ears a lot and they get the bald patches as a result of scratching. The ears should be examined by a vet and then decided what treatment Maru needs. Usually, the treatment is in form of ear drops, that are effective against all type of infections and against mites at the same time.

It could be a bacterial/fungal skin infection or an allergic dermatitis. You could clean the area with Mal-A-Ket wipes and see if that helps. Otherwise, have your vet take a look at her to determine the cause and prescribe medications to treat.

With a clean ear canal, the most common cause of tiny bumps on the ear itself is related to hypersensitivity reactions from insect bites. The inflamed and sore lesion in front of Teak's left ear is most likely due to self-trauma from him scratching. The concern is that this skin may be infected from the excessive scratching. Your best bet is to take Teak to his vet for an exam because he may need a course of antibiotics and antihistamines to manage this issue. Be sure that Teak is receiving a high quality flea preventative (such as Advantage or Revolution) monthly because flea bites can also cause bumps on the ears. I hope that all goes well!

Skin lesions can be caused by bacterial, parasitic or fungal infection, dietary or environmental allergies or sensitivities, immune system disorders, or a combination of the above. Indoor cats can still pick up fungal or parasitic infections, so if the lesion does not resolve or if it gets worse, I recommend making an appointment to have Dunki seen by your veterinarian to help determine the cause of the lesion you’ve noticed and to make sure it is treated appropriately. The vet will likely want to look at a sample from the area under the microscope to determine if there is an infection and to figure out what medication is appropriate for treatment.

Is your pet itching or scratching at its head/ears? Outdoor kitty with the potential for being in a fight or being wounded? These could be excoriations/superficial wounds. If your pet is scratching/itching a lot than these could be caused by an ear infection (bacteria/yeast/ear mites) or allergy (food, flea, etc.), etc. Some medications older cats take can also cause an itchy face, so if your pet is taking a new medication this could be the cause and you should alert your veterinarian. As the lesions appear raw and ulcerated the best plan would be to have your pet seen by your family veterinarian for an exam and ear assessment. That way if medications are needed to improve comfort they can be prescribed. I hope this helps and thank you for using Petco Pet Education Center, formerly Petcoach!

Congratulations on adding Tiger to your family! There is a chance that its bacterial but I would be most concerned thats ringworm (which you can get from him!). I would recommend to take him into the vet for fungal testing and medications to start treatment just in case (while you are waiting on the results). I would also recommend to start him on a flea treatment such as Revolution as this will provide longer protection than a bath! Please let me know if you have any further questions!