My cat is vomiting whole food and chewing cardboard. What's wrong?
Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Harley!
Possible causes of vomiting are: intestinal parasites, viral or bacterial infections, dietary indiscretion (ate something gross), are something that is causing a blockage, pancreatitis, toxin ingestion, hair balls, food allergy/intolerance.
Cats with nausea or underlying intestinal disease like inflammatory bowel disease (IBD) like to lick cardboard, eat paper products, etc. Since she is under 1 year of age and she is known to lick (at least) foreign objects, a blockage is high on the list. If she continues to vomit I would have her seen today before the weekend for an exam and belly X-rays. If everything looks good the Vet can provide a GI diet, anti-nausea and maybe a hair ball remedy.
I wish Harley the best!
Updated on September 23rd, 2025