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Why is my 15-month-old cat so small and underweight at 3.5 lbs?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 1 year and 3 months old | 3.5 lbs

I have a cat that is 15 months old. She is very small. She weighs 3.5lbs. What could cause her to be so little?

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on January 20th, 2017

Some cats are naturally smaller than others, and it's due to their genetics. I have a Persian male cat who is quite small as well, and he doesn't weigh very much. It could also be due to a deficiency with digesting nutrients, and it would be recommended to have a health check done on Allee to be sure she is healthy.

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