Why Is My Cat Throwing Up & Not Eating?

Every once in a while a cat will get ill, often because of something he ate. While occasional sickness is not something to get too worried about, a prolonged or violent illness may be a cue to visit the vet.

  1. Changes In Diet

    • A slow transition from a cat's old food to the new is necessary for best results. If, at any time, the cat has loose stools or has started vomiting, slow the transition until the cat's digestion has improved.

    Allergic Reaction

    • Allergic reactions can result in vomiting and/or loss of appetite and are often accompanied by scratching, weakness and diarrhea. To identify the allergy, discontinue use of any new products and gradually remove items from the cat's environment until health improves.

    Intestinal Parasites

    • In extreme cases, worms can be the cause of vomiting although worms can lay dormant for years without any symptoms. A veterinarian can diagnose a worm infestation by taking a stool sample.

    Surgical Intervention

    • In the most severe cases, vomiting can be a symptom of something serious such as an ulcer or dislocation of the stomach.

    When to Visit the Vet

    • If there is excessive bile or blood in a cat's vomit, worms are suspected, or if the cat may have eaten something indigestible, visit the vet as soon as possible.