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My 8-month-old runt kitten is tiny and not growing. Is this normal?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 8 months and 2 days old

My kitten who is 8 months old is very small for her age maybe half the size of what she should be she eats drinks uses the bathroom fine she plays jumps attacks thing perfectly but she is very small for her age and barley has grown since I got her she was the runt and when we got her after a few weeks after she was born she was way smaller than the others. But she has grown a tad bit but not by much. Will she get to be normal size or will she stay this size or??? Is this normal?

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1 Answer

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Answered By Lotus Altholtz

Veterinarian, Board-Certified Lab Animal Medicine Specialist

Published on March 27th, 2018

Kameo is adorable! She may not get much bigger if she has not grown much in the past 6 months. This is not normal per se for cats, but may be common for runts of the litter. Nutrition may help with this as well as ruling out any underlying medical conditions heart, liver, kidney issues through a throrough physical examination by a veterinarian + screening bloodwork. A top rated food that I recommend for a cat of this age is Royal Canin Kitten dry and wet food. It is highly palatable (most cats love the taste) and provides better nutrition than many other commercially available brands of cat food. I recommend transitioning gradually over the course of a week into the Royal Canin Kitten diet (1st 2 days 75% old food 25% new, 2nd 2 days 50%/50% old/new and last 2-3 days 25% old/75% new). You will likely notice an improvement in Kameo's coat and skin health on the Royal canin diet. If she does not grow significantly by the time she is a year of age....continue her on the Royal canin adult cat food, maintain her at a good body condition score (not too far or too thin), and give her lots of love! Kittens like people come in all shapes and sizes!

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