It’s alarming to see your cat refuse food and vomit, especially if it’s a behavior that appears suddenly. As a pet owner, this situation can quickly become a cause for concern. You may find yourself repeatedly asking, “why is my cat throwing up and not eating?” While occasional vomiting may not be serious, when paired with appetite loss, it can signal an underlying issue. Let’s explore the reasons, treatments, and when to seek help.
Why Is My Cat Throwing Up and Not Eating?
If you’ve been asking yourself, why is my cat throwing up and not eating?, you’re not alone. This behavior is distressing and can have many causes, from mild digestive upset to serious health conditions. The combination of vomiting and not eating suggests more than a passing issue. Understanding the root cause is essential for proper care.
What Is Vomiting in Cats?
Vomiting in cats is the forceful expulsion of stomach contents, usually involving retching or heaving. It is different from regurgitation, which is a passive release of undigested food. If you’re thinking, “why is my cat puking and not eating?”, you need to consider that vomiting can be either acute (sudden and short-term) or chronic (persistent and recurring). Either form can be a symptom of an underlying health condition, particularly when your cat also avoids food.
Also read: How to Choose a Good Cat Food
Causes of Vomiting in Cats
Before panicking, it’s helpful to know that many cases of vomiting in cats are due to temporary issues. However, when combined with loss of appetite, it requires closer attention.
1. Hairballs
Hairballs are one of the most common causes of vomiting in cats. When cats groom themselves, they ingest loose fur. Over time, this accumulates and is expelled. However, if your cat is throwing up frequently and not eating, this could indicate the hairball is causing discomfort or blockage.
2. Dietary Indiscretion
Sudden changes in diet or consumption of inappropriate food can upset your cat’s stomach. Switching between cat wet food and dry food without transition can lead to vomiting. Spoiled food or ingestion of human food may also cause gastrointestinal issues, leaving your cat refusing to eat.
3. Infections
Bacterial or viral infections can irritate the digestive system. If you’re wondering why is my kitten throwing up and not eating, it might be due to viral infections such as feline panleukopenia or feline infectious peritonitis, especially in younger cats with weaker immune systems.
4. Parasites
Worms like roundworms or hookworms can be a hidden reason why your cat is vomiting and not eating. These parasites disrupt digestion and are more common in outdoor or rescue cats.
5. Toxins and Poisoning
Cats are curious and may ingest toxic substances like cleaning products, certain houseplants, or human medications. These can cause vomiting, lethargy, and loss of appetite. If you’re thinking, why is my cat vomiting and not eating, check your home for toxic substances your cat may have encountered.
6. Gastrointestinal Obstruction
An obstruction, caused by ingesting a foreign object such as string, rubber bands, or toys, can lead to repeated vomiting and a refusal to eat. If your cat is vomiting but bringing up no food, or vomiting yellow liquid and not eating, this could suggest a blocked intestine or empty stomach bile.
7. Chronic Illnesses
Chronic kidney disease, liver problems, or pancreatitis may cause vomiting and appetite loss. If you’re concerned and keep wondering why is my cat throwing up and not eating, a chronic health issue might be the root cause.
8. Stress or Anxiety
Stress can manifest physically in cats. Changes in environment, routine, or the introduction of new pets can cause nausea and appetite loss. Understanding Cat Body Language can help detect signs of discomfort or anxiety.
Why Is My Cat Not Eating?
Cats are notoriously picky, but refusal to eat for more than 24 hours should never be ignored. If you’ve ruled out vomiting causes, appetite loss alone can still indicate pain, dental disease, nausea, or emotional distress. Why is my cat throwing up and not eating may have an emotional as well as physical answer. Watch for signs of pain or changes in behavior. Sometimes, appetite loss follows vomiting due to stomach discomfort or inflammation.
Also read: How Do Cats Get Ringworm?
When Should You Worry About Vomiting?
It’s normal for cats to vomit occasionally. However, if your cat is throwing up multiple times a day, not eating, acting lethargic, or vomiting yellow liquid and not eating, it’s time to worry. These symptoms combined may point to dehydration, liver issues, or gastrointestinal disease. Particularly for kittens and senior cats, even one day without food can lead to dangerous complications.
How Vets Diagnose Vomiting in Cats
Veterinarians start with a physical examination and detailed history. Diagnostic steps may include:
- Blood work to check organ function
- Fecal exams for parasites
- Imaging (X-rays or ultrasounds) to detect obstructions or tumors
- Urine analysis for kidney and liver function
This diagnostic process helps narrow down the exact cause, especially in complex cases where you’re left wondering why is my cat puking and not eating for days.
Also read: Why Do Cats Wag Their Tails?
Treatment Options for Vomiting Cats
Once the cause is identified, treatment can begin. If you’re asking why is my cat throwing up and not eating and looking for solutions, here are the most common veterinary treatments.
Fluid Therapy
Dehydration from vomiting is a serious risk. Subcutaneous or intravenous fluids may be administered to stabilize your cat and support recovery.
Anti-Nausea Medication
Veterinarians often prescribe antiemetics like maropitant (Cerenia) to help stop vomiting and reduce nausea, encouraging your cat to eat again.
Dietary Management
A bland, easily digestible diet is recommended during recovery. In some cases, prescription food may be necessary, especially for cats with gastrointestinal disorders. A slow transition between cat wet food and dry food can prevent further stomach upset.
Surgery or Endoscopy
If an obstruction or tumor is found, surgical intervention may be needed. Foreign bodies in the stomach or intestines must be removed promptly to prevent life-threatening complications.
Deworming or Antibiotics
When the cause is parasites or bacterial infection, your vet will prescribe dewormers or antibiotics to clear the issue.
Home Remedies & Prevention Tips
If your cat’s vomiting is mild and doesn’t involve other alarming symptoms, you can try some home remedies and preventive measures while monitoring closely.
Frequent Brushing
Regular grooming helps prevent hairballs, especially in long-haired breeds. Less fur ingestion means less vomiting from hairballs.
Slow Transition Between Foods
Gradually switch your cat’s food over 5–7 days. Sudden changes can shock their digestive system. This is especially important when alternating between cat wet food and dry food.
Smaller, Frequent Meals
Feeding smaller meals throughout the day can prevent vomiting caused by overeating or an empty stomach, a common reason cats throw up yellow liquid and don’t eat.
Environmental Enrichment
Keep your cat mentally stimulated and physically active to reduce stress. Use toys, scratching posts, and interactive play to create a healthy environment. This is especially relevant for Advice for First Time Cat Owners managing stress-related vomiting.
Also read: How To Stop Your Cat Biting
When to See a Vet Immediately
Seek veterinary care immediately if your cat:
- Is vomiting multiple times in one day
- Hasn’t eaten for over 24 hours
- Is lethargic, drooling, or hiding
- Has blood in vomit or stool
- Is a kitten or senior showing symptoms
These signs may point to a serious illness. Delaying care when your cat is vomiting and not eating can lead to rapid health deterioration.
FAQs
What to do when your cat is not eating and vomiting?
Remove food for a few hours, provide fresh water, and monitor. If symptoms persist more than 12-24 hours or worsen, consult a vet immediately.
When should I worry about my cat throwing up?
If vomiting is frequent, accompanied by lethargy, lack of appetite, or other symptoms, it’s time to worry and contact your vet.
How long should I let my sick cat go without eating?
Never more than 24 hours. Cats that don’t eat are at risk of hepatic lipidosis, especially overweight ones.
Do cats throw up because of an empty stomach?
Yes, some cats vomit yellow bile if they haven’t eaten in a while. Feeding smaller, more frequent meals can help.