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Why is my cat suddenly lethargic, not eating, and losing teeth?

Updated On September 23rd, 2025

Pet's info: Cat | Ragdoll | Female | spayed | 5 years and 10 months old | 5 lbs

My cat has been sleeping a lot and will not eat. I looked in her mouth and looks like she has lost her teeth on the right side. Her fur looks dirty. What could be wrong

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 28th, 2016

If Bella has lost teeth on the right side of her mouth, that would be very painful for her and cause her not eat. It would also make her lethargic and unable to clean herself properly. I would take her into a vet now. She sounds very sick from losing her teeth, which could have been caused by severe gingivitis and rotting teeth. She will likely need pain medications and antibiotics, and the vet can treat her mouth. Do not give her any human pain medications, many are toxic to cats and are fatal if given. Please take her into a vet now.

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