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Why is my cat weak, lethargic, can't jump, but still eating well?
Updated on September 23, 2025
Pet's info: Cat | Domestic Shorthair | Male | unneutered | 1 year and 1 month old | 5.5 lbs
My cat's rear legs are weak and he cannot jump nor climb higher platforms like he used to. He is lethargic, but has a very good apetite.
1 Answer
Most Helpful Answer
Answered By Kevin Sanada, DVM
Veterinarian
Published on May 28, 2018
This is very odd behavior for a young cat and is quite worrying. He may have a disease that is causing anemia, or heart trouble causing him to be less active and week. In rare cases young cats can have joint diseases causing similar problems, but it's more likely to be a disease or injury causing him to act like this. It's best to have Allie examined by a vet as soon as possible, because it may be something treatable and he may have life-threatening complications without treatment.
I hope that helps and Allie gets better soon.
I hope that helps and Allie gets better soon.
1Pet Parents found this answer helpful