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My cat fought, sick, weak, sleeping, back pain, no bite. What to do?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | 7 months and 28 days old

My male cat got into a fight with another cat and now he is sick but i don't know what's happening with him. He doesn't eat as much as usual, he goes to the bathrom normally, he sleeps a lot, he's weak and has this strange back pain close to his tail but i don't see any bite or scratch. He walks and does all things normally but most of the time he is sleeping and tired. Im worried what could've happened with him at that fight and why does he has these back pain. What should i do?

2 Answers

Most Helpful Answer

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Answered By Shaneez Wallani, DVM

Veterinarian

Published on July 4th, 2017

Without a physical exam it's not possible to determine what has caused Kissi’s condition, however, it is important that Kissi see a veterinarian right away. He sounds like he is in a lot of pain, and there are various reasons that may have lead to this, including a cat bite abscess, damage to his spinal cord from the fight, or muscle injury. Cat bites can be very difficult to see, but can lead to very serious infections. Another very serious concern in the case of an animal bite is the possibility of rabies infection, which is transmitted from the saliva of infected mammals, can be passed on to humans, and is fatal. Please take Kissi to a veterinarian immediately, as he needs treatment.

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    Answered By Jenny, DVM

    Veterinarian

    Published on

    If we was bitten on his back side and it already healed, you won't find any punctures. However it can trap the bacteria and fester into an abscess which can make them run a fever and be lethargic with a decreased appetite. If he just jumped or landed wrong while outside he could have injured his back or pulled a muscle and might be sore. I would monitor the area for any discharge or swelling and follow up with your vet for the decreased appetite

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