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Why did my 6-month-old cat vomit food? Hairball or overeating?

Updated On September 23rd, 2025

Pet's info: Cat | Siamese | Female | spayed | 6 months and 4 days old | 6.5 lbs

Hi I got a Siammece cat that is only 6 months old and I got her from a shelter last Tuesday. She is pretty shy, but these 2 days she have eaten very well. she have long hair and yesterday I brushed her hair. Today she vomited 1 time and and I didn't see blood or something, I just saw kind of a pure of cat food. Then she tried to vomited again. Do you think the it is a ball of hair of is the food. Here I have some pictures vod the vomit and the food. Please help me, thanks you in advance.

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1 Answer

Most Helpful Answer

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Answered By Andrea M. Brodie, DVM

Veterinarian

Published on December 1st, 2018

This is not normal, however it is not possible to diagnose a particular problem with just this sign Vomiting generally is caused by either over-filling the stomach with dry food ( cat fills the stomach too quickly with too much dry food, it then expands and presses on pressure receptors which protect the stomach from bursting by making the cat regurgitate, or even eating too much wet food at a time. There may also be a gastrointestinal problem. This could be a hairball lodged somewhere in the intestine or stomach, or a food indiscretion. Try to offer her small amounts of her favorite wet food so she does eat something, and make sure she has enough fresh water available. As for preventing hair balls there are several things you can and should do: 1) brush/comb your cat regularly, removing any loose hair from its fur as well as mattes, before they get too big. 2) buy some hair ball remedy paste from either your vet or a pet shop and feed it to your cat according to the instructions on the tube. This helps prevent formation of hairballs. 3) Next time you buy dry food pick the type that specifies "Hair ball Prevention" on the bag. This should make you and your kitty happy!

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