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Dr. Deb
Dr. Deb, Cat Veterinarian
Category: Cat Veterinary
Satisfied Customers: 10292
Experience:  I have been a practicing veterinarian for over 30 years.
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I have a nine week old kitten named Simon who is 2.3 lbs, is

Customer Question

I have a nine week old kitten named Simon who is 2.3 lbs, is this weight healthy? The vet said he is fine, but he is naturally a little bony it seems, and I can feel his ribs and hip bones more prominently than his 13 week older brother. Apparently some kittens are just a little bonier... I'm still worried though. Like I said, the vet said he's at a good weight, and he plays, eats, sleeps, and uses the litter just as much as his brother. He also tested negative for worms or parasites.
Submitted: 2 years ago.
Category: Cat Veterinary
Expert:  Dr. Deb replied 2 years ago.
Hello, I'm Dr. Deb. Thanks for requesting me; I'll do my best to help you today.
The general rule of thumb when it comes to weight gain in a kitten is about 1 pound per month. So if Simon is 9 weeks of age, I'd expect him to weigh a little over 2 pounds which he does.
I agree that some kittens don't carry as much muscle mass especially if they're really active (they burn calories so quickly); however, if they're thin along their spines and hips, yet have a bit of an enlarged abdomen, then in my opinion these kittens have round worms until proven otherwise.
Stool samples may have false negative results because eggs aren't shed in every fecal that's produced. A positive is a positive but I don't always trust a negative result if that makes sense.
If I suspect round worms (by far, the most common cause of internal parasites in kittens this age), then I'll worm them with Pyrantal Paomate. This is a very safe wormer which is available over the counter at most pet stores.
In this case, if I wormed Simon, I'd worm his brother as well since these worms can be passed back and forth.
It doesn't sound as if there's anything too serious going on with him since he's otherwise acting like a normal kitten should and his physical exam was normal. But, I might consider worming him just to rule out internal parasites as a possible cause for his body condition.
I hope this helps. Deb
Expert:  Dr. Deb replied 2 years ago.

I'm just following up on our conversation about your pet. How is everything going?

Dr. Deb