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Why is my new kitten lethargic with a swollen ear, diarrhea, and no appetite?

Updated on September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | unneutered

My new kitten has a sore neat his ear. The area is swollen. He's been sleeping all day, not interested in his food and not wanting to play. He's also had diarrhea off and on. Is this serious?

1 Answer

Most Helpful Answer

Dr. Melanie, BVSc MS

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on July 30th, 2017

Congrats on your new kitten but I'm sorry Thor isn't doing well! It is concerning that this sore is swollen, which is a sign of infection. He could also have intestinal worms causing his diarrhea. A heavy burden of them can lead a kitten to be more lethargic and not want to eat, as could an infection such as from the sore on his ear. It's serious enough that Thor should see a vet first thing in the morning so his symptoms can be diagnosed and treated.
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