Reasons why my cat is throwing up

People ask Dr Google for the “reasons why my cat is throwing up”. Here is an overview of the reasons but it is not a substitute for taking your cat to a genuine doctor; a good veterinarian if needs must. In fact it is a huge subject because there are many causes. Vomiting is a common cat health problem symptom like lethargy and loss of appetite. Self-diagnosis is hard and problematic. In all but straightforward cases a vet should be consulted.

Cat Vomiting

Two useful tags. Click either to see the articles:- Toxic to cats | Dangers to cats

Throws up once or twice, cat healthy and normal before and after

The vomiting is probably not serious. Cats are good vomiters and it is not unusual.

Throws up without eating

If the cause of the vomiting is not food related it is a possible sign of an infectious disease or disorder.

Diseases associated with vomiting

Kidney or liver disease and urethral obstruction. Central nervous system disorder, feline panleukopenia, tonsillitis, sore throat, inflammatory bowel disease (IBD), infected uterus, enteritis, gastritis. Young cats: panleukopenia. Peritonitis.

Most common reasons

Swallowing something indigestible. This might be hair or grass. Cats swallow their own hair and they eat grass for folic acid. We have all seen this. Indigestible substances irritate the stomach. Overeating or eating too fast is also common. Kittens sometimes throw up if they gobble their food. Separating kittens when feeding and/or feeding less food may help.

Parasites

Intestinal parasites may also irritate the stomach.

Poisons and drugs

Ingesting poison or drugs can cause vomiting.

Anaphylactic shock

This is an immediate allergic reaction when a cat is exposed to an allergen. Acute anaphylaxis causes vomiting.

Persistent vomiting

Cause: indigestible items and some diseases (infectious enteritis)

Sporadic vomiting

If it occurs over days or weeks and it is not linked to meals and the appetite is poor it might be foreign body in the stomach, liver or kidney disease, chronic gastritis, IBS, hairballs, worm infestation, diabetes mellitus, gastric or intestinal tumour in older cats.

Vomiting blood

Foreign body causing bleeding between mouth and upper small bowel.

Vomiting feces

Intestinal obstruction, peritonitis, trauma to abdomen.

Projective vomiting

Complete blockage in the upper gastrointestinal tract caused by foreign bodies, hairballs, tumour and strictures. Brain disease also a possible cause.

Vomiting worms

Kittens heavily infested with roundworms may vomit them.

Baterial infection of uterus

This is pyometra, a life threatening infection. The cat becomes toxic and runs a fever and vomits.

Treatments

I am not qualified to advise on treatments. Sorry. Please see a vet if in doubt. I am afraid there is no other way although I understand the reluctance.

Some links to more on cat vomiting

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