Common Causes of Vomiting in Cats and When to Call the Vet

Understanding Cat Vomiting

Vomiting in cats is common, but frequent or severe vomiting may indicate an underlying health issue. While occasional vomiting—such as from hairballs—might not be a cause for concern, persistent vomiting, changes in appetite, or signs of illness require veterinary attention.

If your cat is vomiting more than usual, understanding the potential causes, symptoms, and treatment options can help ensure they receive the care they need.

At Wales Animal Clinic, we provide expert veterinary care to diagnose and manage vomiting in cats. If you’re concerned about your pet’s health, schedule an appointment today.

Recognizing Different Types of Vomiting in Cats

Cats may vomit for various reasons, and the appearance of the vomit can provide important clues:

  • Clear or foamy vomit – Often linked to an empty stomach or mild gastric irritation.
  • Yellow or green bile – May indicate bile reflux or digestive issues.
  • Undigested food – Could be due to eating too quickly, food intolerance, or an obstruction.
  • Blood in vomit – Fresh red blood or a coffee-ground appearance signals a serious condition requiring immediate veterinary care.

For a detailed breakdown of vomit types, learn about the different types of cat vomit.

Common Causes of Vomiting in Cats

1. Hairballs

Hairballs form when cats ingest fur while grooming. Occasional hairball vomiting is normal, but frequent vomiting of hairballs may indicate a digestive issue.

Ways to reduce hairballs:

  • Brush your cat regularly to remove loose fur.
  • Provide a diet formulated to minimize hairball formation.
  • Offer hairball-control supplements as recommended by your veterinarian.

2. Dietary Issues and Eating Habits

Cats may vomit due to:

  • Eating too quickly – Rapid eating can cause regurgitation.
  • Food intolerance or allergies – Some cats react poorly to certain ingredients.
  • Sudden diet changes – Transitioning to new food too quickly can cause stomach upset.
  • Ingesting foreign objects – Toys, string, or household plants can lead to vomiting and require emergency care.

3. Underlying Medical Conditions

Vomiting can also be a symptom of a more serious health issue, such as:

  • Gastrointestinal diseases – Inflammatory bowel disease (IBD) and gastritis can cause chronic vomiting.
  • Chronic kidney disease (CKD) – Affects many older cats and leads to nausea and vomiting. Learn more about CKD in cats.
  • Hyperthyroidism – An overactive thyroid can cause increased appetite, weight loss, and vomiting. Read about feline hyperthyroidism.
  • Diabetes – Uncontrolled diabetes can lead to vomiting and lethargy.

4. Parasites and Infections

Intestinal parasites such as roundworms, hookworms, and tapeworms can cause vomiting in cats. Bacterial and viral infections, including feline panleukopenia, may also contribute to digestive distress.

Prevention tips:

  • Keep your cat on a regular deworming schedule.
  • Ensure they receive routine vaccinations to prevent infections.

When to Seek Veterinary Care

While some vomiting episodes resolve on their own, certain symptoms require immediate veterinary attention:

  • Vomiting more than twice in 24 hours
  • Presence of blood in vomit
  • Lethargy or weakness
  • Diarrhea or signs of dehydration (sunken eyes, dry gums, decreased urination)
  • Loss of appetite lasting more than a day
  • Repeated unsuccessful attempts to vomit (dry heaving), which may indicate an obstruction

If your cat is showing any of these signs, contact Wales Animal Clinic for an evaluation.

Diagnosing Vomiting in Cats

Veterinarians use a combination of diagnostic tests to determine the cause of vomiting, including:

  • Physical exam – Checking hydration levels, abdominal pain, and overall condition.
  • Blood tests – Assessing kidney function, thyroid levels, and infection markers.
  • X-rays or ultrasound – Identifying blockages, tumors, or organ abnormalities.
  • Fecal exams – Detecting parasites or bacterial infections.

Learn more about our diagnostic services at Wales Animal Clinic.

Treatment Options for Vomiting in Cats

Treatment depends on the underlying cause and may include:

  • Dietary changes – Switching to a prescription diet for food sensitivities.
  • Medications – Anti-nausea drugs, antibiotics, or anti-inflammatory treatments.
  • Fluid therapy – Used to combat dehydration and restore electrolyte balance.
  • Surgery – Required if a foreign object is causing an obstruction.

For severe cases requiring advanced treatment or surgery, visit Wales Animal Clinic’s Surgery & Anesthesia page.

Preventing Vomiting in Cats

To help reduce vomiting episodes:

  • Feed a high-quality diet tailored to your cat’s needs.
  • Slow down eating by using puzzle feeders or slow-feed bowls.
  • Regularly groom long-haired cats to prevent excessive hair ingestion.
  • Keep harmful objects and toxic plants out of reach.
  • Schedule routine veterinary check-ups to monitor your cat’s health.

For more preventive care recommendations, visit Wales Animal Clinic’s Wellness & Prevention page.

FAQs About Cat Vomiting

How often is too often for a cat to vomit?

If your cat vomits more than once a week, or multiple times in a day, schedule a veterinary visit.

Can stress cause vomiting in cats?

Yes, stress-related vomiting is common, especially in multi-cat households or after changes in routine.

Should I withhold food if my cat vomits?

In mild cases, withholding food for 6-12 hours can help. However, if vomiting continues, contact your veterinarian.

Schedule an Appointment Today

If your cat is vomiting frequently, it’s essential to determine the cause and seek appropriate treatment. At Wales Animal Clinic, we offer comprehensive diagnostics and treatment plans to keep your pet healthy.

Request an appointment today to ensure your cat receives the care they need.