Potential Causes for a Cat Throwing Up White Foam

If you see your cat puking white foam, it is quite easy to become concerned. After all, when humans vomit it is usually due to an illness, whether that illness is severe or not. But a cat vomiting white foam is actually a pretty common occurrence. If you notice your cat exhibiting this behavior, then you want to know the possible causes so that you can decide whether or not it is a reason to take your feline fur baby to the vet.


One of the most common causes of a cat vomiting white foam is due to them having a hairball. Hairballs happen because when cats groom themselves, they get hair in their mouth that forms into a hairball within their digestive systems. Cats should be able to digest fur, they eat critters with fur and are constant groomers. When hairballs become a problem, it is usually a sign of a loss of digestive enzymes. This is a common occurrence with cats, especially older ones.

Dietary Changes

Another thing that can cause your cat to throw up white foam is a dietary change. Dietary changes can sometimes be resisted by cats. That means that they might skip a meal or eat it later than they normally do. If you are feeding them a new food, and they don’t have any warning, their bodies are going to produce the digestive juices that they need to break down that food, whether they eat it or not. As you might imagine, this also means that you if you change your cats feeding schedule itself, then white foam vomiting may be a result as well.

Stomach Inflammation

Stomach inflammation, called gastritis, can be one of the causes of your cat vomiting white foam. Usually, this symptom will be accompanied by a lack of appetite and they may throw up bile or blood in addition to white foam.

When to Panic

If your cat is responding to a change in feeding or you have a cat puking white foam due to a hairball, then you can probably relax. But if your cat’s vomiting is due to gastritis, a visit to the vet may be in order. Other symptoms of gastritis may include sluggishness, dehydration, depression and stomach discomfort.

For hairballs try a combination of Vitality Science’s Pet Flora and Super Pet Enzymes

Cats eat hair, that’s a fact.

However, they should be able to digest that hair. Sometimes cats need a little help with digestion, for hairballs we suggest a combination of Vitality Science’s Pet Flora and Super Pet Enzymes.

5 thoughts on “Potential Causes for Cats Throwing Up White Foam

  1. JBrown says:

    If your cat is throwing up white foam, yellow foam, no food, small amount of hair…
    Elevate the Food Bowl enough to make your cat eat standing up. Should resolve itself within a few days. This relaxes the digestive tract enough to lower the amount of stomach acid being produced.

  2. Karen says:

    Hi my cats occasionally throw up white foam with a little fur ball but their poops are like little fur sausages with a thin coating of poop – is there something I should be doing about this?

    • LeLa Becker says:

      Hi Karen, Although, JBrown has an excellent suggestion, we would also like to suggest Vitality Science’s Super Pet Enzymes. Adding this to the food will help to dissolve hair and other undigested items in the GI Track. Resulting in my formed stools and expelling more stools from the GI Tract. Thanks for writing in and let us know how else we can help.

  3. Betty Raulston says:

    My cat vomits daily some days multilup times. Always after eating and drinking water. Recently he lost bowl control
    This cat is 14 years old so I’m concerned

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