Why Is My Cat Throwing Up White Foam?

Why Is My Cat Throwing Up White Foam?

While occasional vomiting may not be alarming, throwing up white foam warrants attention as it could indicate specific conditions.

Potential Causes

Bilious Vomiting Syndrome

This syndrome occurs when a cat’s stomach is empty for an extended period, leading to the secretion of bile. The vomit, in this case, may appear as white or yellow foam.


As mentioned earlier, hairballs can cause cats to vomit. When the hairball is not entirely expelled, it may mix with stomach fluids, resulting in white foam.


Inflammation of the stomach lining, known as gastritis, can cause cats to vomit white foam due to irritation and excess stomach acid production.

Symptoms to Watch For

Aside from vomiting white foam, there are other signs that may accompany this behavior, indicating potential health issues.

Signs of Discomfort

Watch for signs of discomfort such as restlessness, lethargy, or abdominal pain.

Changes in Behavior

Notice any changes in your cat’s behavior, appetite, or litter box habits, as these could signal underlying health problems.

When to See a Vet

While occasional vomiting may not be a cause for concern, persistent or severe vomiting warrants a trip to the veterinarian.

Persistent Vomiting

If your cat is vomiting frequently or if the vomiting persists for more than 24 hours, seek veterinary care promptly.

Additional Symptoms

Accompanying symptoms such as diarrhea, loss of appetite, or lethargy require immediate attention from a vet.

Home Remedies and Prevention

In some cases, you can help alleviate your cat’s vomiting at home and take steps to prevent future episodes.

Dietary Adjustments

Switching to a high-quality cat food and feeding smaller, more frequent meals can help prevent vomiting due to dietary issues.

Hairball Remedies

Regular grooming and providing hairball remedies such as specialized diets or lubricant treats can aid in hairball prevention.

Stress Reduction

Reducing stressors in your cat’s environment, such as introducing environmental enrichment and maintaining a consistent routine, can help minimize stress-related vomiting.


While occasional vomiting in cats is normal, throwing up white foam may indicate underlying issues such as bilious vomiting syndrome, hairballs, or gastritis. Monitoring your cat’s health, recognizing symptoms, and seeking prompt veterinary care are crucial for maintaining their well-being.

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