Pet Health

Here's what to Do if Your Cat Is Vomiting White Foam (Vet-Reviewed)

Discover the causes of your cat's white foam vomiting and learn effective solutions. This vet-reviewed guide offers helpful tips for concerned pet owners.
Author: Veterinary Team
Dial A Vet
Updated
June 6, 2025
|
Published
June 6, 2025
cat lying on a vet's table with white foam around its mouth, illustrating vomiting symptoms and seeking help

Video Call an Aussie Vet now for just $49 AUD

Dial A Vet is available in Australia, NZ, Canada, United States & Canada!
Speak to A Vet Now

Finding your cat vomiting white foam can be alarming, especially if you're unsure of the cause. As a concerned pet parent, you want to know what's going on and how you can help. While occasional vomiting might not be serious, repeated episodes or other symptoms could indicate a deeper issue that needs attention. Here's everything you need to know to care for your feline friend.

⚠️ What to Watch For

Vomiting white foam can be a symptom of various underlying issues. Monitoring your cat’s behavior and health closely will help you determine if it’s a temporary problem or something more serious. Look for these signs:

  • Frequency of vomiting (once or multiple times)
  • Presence of other symptoms, such as lethargy, diarrhea, or lack of appetite
  • Changes in behavior (hiding, vocalizing, or aggression)
  • Signs of dehydration (dry gums, sunken eyes, or reduced skin elasticity)

If your cat is vomiting occasionally but seems otherwise normal, it may not be an emergency. However, if the vomiting persists or is accompanied by other concerning symptoms, it’s time to take action.

🔍 Possible Causes

There are several potential reasons your cat might vomit white foam. Some are harmless, while others may require veterinary care. Here are the most common causes:

  • Hairballs: Cats groom themselves frequently, and ingesting hair can lead to hairballs. If the hairball is stuck, your cat may vomit foam.
  • Empty Stomach: When a cat’s stomach is empty for too long, it can produce gastric juices, leading to foam vomiting.
  • Indigestion: Eating too quickly or consuming something they shouldn’t, like grass or spoiled food, can upset their stomach.
  • Gastrointestinal Issues: Conditions like gastritis, IBD (inflammatory bowel disease), or ulcers can cause vomiting.
  • Parasites: Worms or other intestinal parasites can irritate the digestive system and lead to vomiting.
  • Chronic Conditions: Diseases like kidney disease, pancreatitis, or hyperthyroidism can cause recurring vomiting.

Understanding the potential cause is key to determining the right course of action for your cat’s health.

✅ What You Can Do at Home

If your cat is otherwise healthy and the vomiting is infrequent, there are steps you can take at home to help them recover:

  • Withhold Food: Give your cat’s stomach a break by withholding food for 6–8 hours (but not water). This can help reduce irritation.
  • Small, Bland Meals: After fasting, offer small portions of a bland diet, such as boiled chicken or a prescription gastrointestinal cat food.
  • Hydration: Ensure your cat has access to fresh water. If they’re not drinking, try offering water through a syringe or providing low-sodium chicken broth.
  • Hairball Remedies: Use a hairball gel or add a teaspoon of petroleum jelly to their paw to help them pass hairballs.
  • Monitor: Keep an eye on your cat’s behavior, appetite, and litter box habits over the next 24–48 hours.

Always consult your veterinarian before introducing new foods or treatments, especially if your cat has pre-existing health conditions.

💡 When to Call a Vet

While occasional vomiting may not be a cause for alarm, certain situations require immediate veterinary attention. Contact your vet if you notice:

  • Persistent vomiting (more than 2–3 times in 24 hours)
  • Blood in the vomit (red or coffee-ground appearance)
  • Severe lethargy, weakness, or collapse
  • Refusal to eat or drink for over 24 hours
  • Signs of pain, such as crying out or sensitivity when touched
  • Vomiting along with diarrhea or other severe symptoms

Vomiting can be a symptom of serious conditions that require prompt treatment, such as blockages, poisoning, or organ failure. A veterinarian can assess your cat’s health and provide the necessary care.

FAQs

Q: Why is my cat vomiting white foam but acting normal?
A: If your cat seems otherwise healthy, the vomiting may be due to an empty stomach, hairballs, or mild indigestion. Monitor their behavior and try feeding smaller, more frequent meals.

Q: Should I feed my cat after they vomit white foam?
A: It’s best to withhold food for 6–8 hours after vomiting to let their stomach settle. Afterward, offer small, bland meals and monitor their response.

Q: Can stress cause my cat to vomit white foam?
A: Yes, stress can upset your cat’s digestive system and lead to vomiting. Minimizing stressors and creating a calm environment can help reduce episodes.

Book a $49 online vet consultation at https://www.dialavet.com for fast, expert advice.

References

While every effort is made to ensure the accuracy of this content - including vet review where applicable - this article is for informational purposes only and is not a substitute for professional veterinary advice, diagnosis, or treatment. If your pet is unwell or you are concerned, please speak with a licensed veterinarian. You can book a $49 online consultation with our veterinary team  😄
Speak to A Vet Now

🐾 You Might Also Like

📈 Popular Pet Topics Right Now