Question: what does it mean when a cat throws up a worm?
Answer: Most cats are infected with roundworms at some point in their life. ... If your cat suffers weight loss, dull hair, and a potbellied appearance, it may have a major roundworm infection. You may see roundworms in your cat's feces or vomit. Your veterinarian can help you with roundworm prevention, examination, and treatment.